Home / 753,071.52-1,129,607.72-472,785.60

Finding the Fourth Proportional to 753,071.52, 1,129,607.72 and 472,785.60

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Solution

The fourth proportional to 753,071.52, 1,129,607.72 and 472,785.60 is: 709,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,071.52 : 1,129,607.72 = 472,785.60 : x
  2. Step 2: Convert to fraction form
    753,071.52/1,129,607.72 = 472,785.60/x
  3. Step 3: Cross multiply
    753,071.52x = 1,129,607.72 × 472,785.60
  4. Step 4: Simplify right side
    753,071.52x = 534,062,263,664.83
  5. Step 5: Solve for x
    x = 534,062,263,664.83/753,071.52
  6. Step 6: Final answer
    x = 709,178.68

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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.