Home / 902,381.13-1,245,285.90-499,973.13

Finding the Fourth Proportional to 902,381.13, 1,245,285.90 and 499,973.13

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Solution

The fourth proportional to 902,381.13, 1,245,285.90 and 499,973.13 is: 689,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,381.13 : 1,245,285.90 = 499,973.13 : x
  2. Step 2: Convert to fraction form
    902,381.13/1,245,285.90 = 499,973.13/x
  3. Step 3: Cross multiply
    902,381.13x = 1,245,285.90 × 499,973.13
  4. Step 4: Simplify right side
    902,381.13x = 622,609,489,167.87
  5. Step 5: Solve for x
    x = 622,609,489,167.87/902,381.13
  6. Step 6: Final answer
    x = 689,962.89

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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.