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Finding the Fourth Proportional to 602,726.40, 904,780.80 and 353,548.80

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Solution

The fourth proportional to 602,726.40, 904,780.80 and 353,548.80 is: 530,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,726.40 : 904,780.80 = 353,548.80 : x
  2. Step 2: Convert to fraction form
    602,726.40/904,780.80 = 353,548.80/x
  3. Step 3: Cross multiply
    602,726.40x = 904,780.80 × 353,548.80
  4. Step 4: Simplify right side
    602,726.40x = 319,884,166,103.04
  5. Step 5: Solve for x
    x = 319,884,166,103.04/602,726.40
  6. Step 6: Final answer
    x = 530,728.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.