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Finding the Fourth Proportional to 527,445.04, 728,004.36 and 301,221.76

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Solution

The fourth proportional to 527,445.04, 728,004.36 and 301,221.76 is: 415,760.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,445.04 : 728,004.36 = 301,221.76 : x
  2. Step 2: Convert to fraction form
    527,445.04/728,004.36 = 301,221.76/x
  3. Step 3: Cross multiply
    527,445.04x = 728,004.36 × 301,221.76
  4. Step 4: Simplify right side
    527,445.04x = 219,290,754,606.87
  5. Step 5: Solve for x
    x = 219,290,754,606.87/527,445.04
  6. Step 6: Final answer
    x = 415,760.39

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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.