Home / 728,442.05-1,002,962.54-619,331.81

Finding the Fourth Proportional to 728,442.05, 1,002,962.54 and 619,331.81

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Solution

The fourth proportional to 728,442.05, 1,002,962.54 and 619,331.81 is: 852,733.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,442.05 : 1,002,962.54 = 619,331.81 : x
  2. Step 2: Convert to fraction form
    728,442.05/1,002,962.54 = 619,331.81/x
  3. Step 3: Cross multiply
    728,442.05x = 1,002,962.54 × 619,331.81
  4. Step 4: Simplify right side
    728,442.05x = 621,166,602,163.74
  5. Step 5: Solve for x
    x = 621,166,602,163.74/728,442.05
  6. Step 6: Final answer
    x = 852,733.04

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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.