Home / 1,038,937.96-1,558,451.40-407,988.28

Finding the Fourth Proportional to 1,038,937.96, 1,558,451.40 and 407,988.28

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Solution

The fourth proportional to 1,038,937.96, 1,558,451.40 and 407,988.28 is: 611,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,937.96 : 1,558,451.40 = 407,988.28 : x
  2. Step 2: Convert to fraction form
    1,038,937.96/1,558,451.40 = 407,988.28/x
  3. Step 3: Cross multiply
    1,038,937.96x = 1,558,451.40 × 407,988.28
  4. Step 4: Simplify right side
    1,038,937.96x = 635,829,906,149.59
  5. Step 5: Solve for x
    x = 635,829,906,149.59/1,038,937.96
  6. Step 6: Final answer
    x = 611,999.88

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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.