Home / 845,025.40-1,267,538.10-509,102.20

Finding the Fourth Proportional to 845,025.40, 1,267,538.10 and 509,102.20

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Solution

The fourth proportional to 845,025.40, 1,267,538.10 and 509,102.20 is: 763,653.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,025.40 : 1,267,538.10 = 509,102.20 : x
  2. Step 2: Convert to fraction form
    845,025.40/1,267,538.10 = 509,102.20/x
  3. Step 3: Cross multiply
    845,025.40x = 1,267,538.10 × 509,102.20
  4. Step 4: Simplify right side
    845,025.40x = 645,306,435,293.82
  5. Step 5: Solve for x
    x = 645,306,435,293.82/845,025.40
  6. Step 6: Final answer
    x = 763,653.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.