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Finding the Fourth Proportional to 630,612.79, 870,264.13 and 344,151.29

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Solution

The fourth proportional to 630,612.79, 870,264.13 and 344,151.29 is: 474,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,612.79 : 870,264.13 = 344,151.29 : x
  2. Step 2: Convert to fraction form
    630,612.79/870,264.13 = 344,151.29/x
  3. Step 3: Cross multiply
    630,612.79x = 870,264.13 × 344,151.29
  4. Step 4: Simplify right side
    630,612.79x = 299,502,522,980.23
  5. Step 5: Solve for x
    x = 299,502,522,980.23/630,612.79
  6. Step 6: Final answer
    x = 474,938.87

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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.