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Finding the Fourth Proportional to 702,983.59, 970,115.86 and 380,692.69

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Solution

The fourth proportional to 702,983.59, 970,115.86 and 380,692.69 is: 525,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,983.59 : 970,115.86 = 380,692.69 : x
  2. Step 2: Convert to fraction form
    702,983.59/970,115.86 = 380,692.69/x
  3. Step 3: Cross multiply
    702,983.59x = 970,115.86 × 380,692.69
  4. Step 4: Simplify right side
    702,983.59x = 369,316,016,355.06
  5. Step 5: Solve for x
    x = 369,316,016,355.06/702,983.59
  6. Step 6: Final answer
    x = 525,355.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.