Home / 915,130.75-1,372,897.14-375,390.22

Finding the Fourth Proportional to 915,130.75, 1,372,897.14 and 375,390.22

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Solution

The fourth proportional to 915,130.75, 1,372,897.14 and 375,390.22 is: 563,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,130.75 : 1,372,897.14 = 375,390.22 : x
  2. Step 2: Convert to fraction form
    915,130.75/1,372,897.14 = 375,390.22/x
  3. Step 3: Cross multiply
    915,130.75x = 1,372,897.14 × 375,390.22
  4. Step 4: Simplify right side
    915,130.75x = 515,372,159,421.97
  5. Step 5: Solve for x
    x = 515,372,159,421.97/915,130.75
  6. Step 6: Final answer
    x = 563,167.79

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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.