Home / 915,019.92-1,372,533.36-510,461.28

Finding the Fourth Proportional to 915,019.92, 1,372,533.36 and 510,461.28

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Solution

The fourth proportional to 915,019.92, 1,372,533.36 and 510,461.28 is: 765,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,019.92 : 1,372,533.36 = 510,461.28 : x
  2. Step 2: Convert to fraction form
    915,019.92/1,372,533.36 = 510,461.28/x
  3. Step 3: Cross multiply
    915,019.92x = 1,372,533.36 × 510,461.28
  4. Step 4: Simplify right side
    915,019.92x = 700,625,135,788.30
  5. Step 5: Solve for x
    x = 700,625,135,788.30/915,019.92
  6. Step 6: Final answer
    x = 765,693.86

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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.