Home / 915,221.92-1,372,840.98-375,774.88

Finding the Fourth Proportional to 915,221.92, 1,372,840.98 and 375,774.88

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Solution

The fourth proportional to 915,221.92, 1,372,840.98 and 375,774.88 is: 563,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,221.92 : 1,372,840.98 = 375,774.88 : x
  2. Step 2: Convert to fraction form
    915,221.92/1,372,840.98 = 375,774.88/x
  3. Step 3: Cross multiply
    915,221.92x = 1,372,840.98 × 375,774.88
  4. Step 4: Simplify right side
    915,221.92x = 515,879,154,518.58
  5. Step 5: Solve for x
    x = 515,879,154,518.58/915,221.92
  6. Step 6: Final answer
    x = 563,665.65

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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.