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Finding the Fourth Proportional to 552,123.34, 761,938.04 and 310,392.41

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Solution

The fourth proportional to 552,123.34, 761,938.04 and 310,392.41 is: 428,345.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,123.34 : 761,938.04 = 310,392.41 : x
  2. Step 2: Convert to fraction form
    552,123.34/761,938.04 = 310,392.41/x
  3. Step 3: Cross multiply
    552,123.34x = 761,938.04 × 310,392.41
  4. Step 4: Simplify right side
    552,123.34x = 236,499,781,472.57
  5. Step 5: Solve for x
    x = 236,499,781,472.57/552,123.34
  6. Step 6: Final answer
    x = 428,345.92

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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.