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Finding the Fourth Proportional to 615,809.46, 849,800.52 and 343,869.78

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Solution

The fourth proportional to 615,809.46, 849,800.52 and 343,869.78 is: 474,531.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,809.46 : 849,800.52 = 343,869.78 : x
  2. Step 2: Convert to fraction form
    615,809.46/849,800.52 = 343,869.78/x
  3. Step 3: Cross multiply
    615,809.46x = 849,800.52 × 343,869.78
  4. Step 4: Simplify right side
    615,809.46x = 292,220,717,856.29
  5. Step 5: Solve for x
    x = 292,220,717,856.29/615,809.46
  6. Step 6: Final answer
    x = 474,531.06

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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.