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Finding the Fourth Proportional to 702,497.28, 969,446.40 and 384,545.28

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Solution

The fourth proportional to 702,497.28, 969,446.40 and 384,545.28 is: 530,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,497.28 : 969,446.40 = 384,545.28 : x
  2. Step 2: Convert to fraction form
    702,497.28/969,446.40 = 384,545.28/x
  3. Step 3: Cross multiply
    702,497.28x = 969,446.40 × 384,545.28
  4. Step 4: Simplify right side
    702,497.28x = 372,796,037,332.99
  5. Step 5: Solve for x
    x = 372,796,037,332.99/702,497.28
  6. Step 6: Final answer
    x = 530,672.57

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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.