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Finding the Fourth Proportional to 584,425.40, 876,638.10 and 303,906.20

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Solution

The fourth proportional to 584,425.40, 876,638.10 and 303,906.20 is: 455,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,425.40 : 876,638.10 = 303,906.20 : x
  2. Step 2: Convert to fraction form
    584,425.40/876,638.10 = 303,906.20/x
  3. Step 3: Cross multiply
    584,425.40x = 876,638.10 × 303,906.20
  4. Step 4: Simplify right side
    584,425.40x = 266,415,753,746.22
  5. Step 5: Solve for x
    x = 266,415,753,746.22/584,425.40
  6. Step 6: Final answer
    x = 455,859.30

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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.