Home / 1,232,115.40-1,848,000.30-390,752.20

Finding the Fourth Proportional to 1,232,115.40, 1,848,000.30 and 390,752.20

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Solution

The fourth proportional to 1,232,115.40, 1,848,000.30 and 390,752.20 is: 586,073.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232,115.40 : 1,848,000.30 = 390,752.20 : x
  2. Step 2: Convert to fraction form
    1,232,115.40/1,848,000.30 = 390,752.20/x
  3. Step 3: Cross multiply
    1,232,115.40x = 1,848,000.30 × 390,752.20
  4. Step 4: Simplify right side
    1,232,115.40x = 722,110,182,825.66
  5. Step 5: Solve for x
    x = 722,110,182,825.66/1,232,115.40
  6. Step 6: Final answer
    x = 586,073.50

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Double scale
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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.