Home / 728,587.95-1,092,973.59-391,164.90

Finding the Fourth Proportional to 728,587.95, 1,092,973.59 and 391,164.90

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Solution

The fourth proportional to 728,587.95, 1,092,973.59 and 391,164.90 is: 586,796.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,587.95 : 1,092,973.59 = 391,164.90 : x
  2. Step 2: Convert to fraction form
    728,587.95/1,092,973.59 = 391,164.90/x
  3. Step 3: Cross multiply
    728,587.95x = 1,092,973.59 × 391,164.90
  4. Step 4: Simplify right side
    728,587.95x = 427,532,905,034.99
  5. Step 5: Solve for x
    x = 427,532,905,034.99/728,587.95
  6. Step 6: Final answer
    x = 586,796.56

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1.5x scale

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.