Home / 728,875.45-1,005,415.09-567,474.85

Finding the Fourth Proportional to 728,875.45, 1,005,415.09 and 567,474.85

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Solution

The fourth proportional to 728,875.45, 1,005,415.09 and 567,474.85 is: 782,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,875.45 : 1,005,415.09 = 567,474.85 : x
  2. Step 2: Convert to fraction form
    728,875.45/1,005,415.09 = 567,474.85/x
  3. Step 3: Cross multiply
    728,875.45x = 1,005,415.09 × 567,474.85
  4. Step 4: Simplify right side
    728,875.45x = 570,547,777,385.49
  5. Step 5: Solve for x
    x = 570,547,777,385.49/728,875.45
  6. Step 6: Final answer
    x = 782,778.15

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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.