Home / 915,221.42-1,372,840.23-375,774.38

Finding the Fourth Proportional to 915,221.42, 1,372,840.23 and 375,774.38

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Solution

The fourth proportional to 915,221.42, 1,372,840.23 and 375,774.38 is: 563,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,221.42 : 1,372,840.23 = 375,774.38 : x
  2. Step 2: Convert to fraction form
    915,221.42/1,372,840.23 = 375,774.38/x
  3. Step 3: Cross multiply
    915,221.42x = 1,372,840.23 × 375,774.38
  4. Step 4: Simplify right side
    915,221.42x = 515,878,186,267.31
  5. Step 5: Solve for x
    x = 515,878,186,267.31/915,221.42
  6. Step 6: Final answer
    x = 563,664.90

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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.