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Finding the Fourth Proportional to 675,869.40, 932,685.84 and 369,938.34

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Solution

The fourth proportional to 675,869.40, 932,685.84 and 369,938.34 is: 510,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,869.40 : 932,685.84 = 369,938.34 : x
  2. Step 2: Convert to fraction form
    675,869.40/932,685.84 = 369,938.34/x
  3. Step 3: Cross multiply
    675,869.40x = 932,685.84 × 369,938.34
  4. Step 4: Simplify right side
    675,869.40x = 345,036,251,391.11
  5. Step 5: Solve for x
    x = 345,036,251,391.11/675,869.40
  6. Step 6: Final answer
    x = 510,507.28

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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.