Home / 915,192.90-1,372,400.55-442,023.30

Finding the Fourth Proportional to 915,192.90, 1,372,400.55 and 442,023.30

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Solution

The fourth proportional to 915,192.90, 1,372,400.55 and 442,023.30 is: 662,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,192.90 : 1,372,400.55 = 442,023.30 : x
  2. Step 2: Convert to fraction form
    915,192.90/1,372,400.55 = 442,023.30/x
  3. Step 3: Cross multiply
    915,192.90x = 1,372,400.55 × 442,023.30
  4. Step 4: Simplify right side
    915,192.90x = 606,633,020,032.82
  5. Step 5: Solve for x
    x = 606,633,020,032.82/915,192.90
  6. Step 6: Final answer
    x = 662,847.17

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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.