Home / 1,028,280.10-1,541,772.15-429,657.70

Finding the Fourth Proportional to 1,028,280.10, 1,541,772.15 and 429,657.70

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Solution

The fourth proportional to 1,028,280.10, 1,541,772.15 and 429,657.70 is: 644,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,280.10 : 1,541,772.15 = 429,657.70 : x
  2. Step 2: Convert to fraction form
    1,028,280.10/1,541,772.15 = 429,657.70/x
  3. Step 3: Cross multiply
    1,028,280.10x = 1,541,772.15 × 429,657.70
  4. Step 4: Simplify right side
    1,028,280.10x = 662,434,275,893.06
  5. Step 5: Solve for x
    x = 662,434,275,893.06/1,028,280.10
  6. Step 6: Final answer
    x = 644,215.79

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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.