Home / 915,710.52-1,263,676.54-513,302.52

Finding the Fourth Proportional to 915,710.52, 1,263,676.54 and 513,302.52

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Solution

The fourth proportional to 915,710.52, 1,263,676.54 and 513,302.52 is: 708,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,710.52 : 1,263,676.54 = 513,302.52 : x
  2. Step 2: Convert to fraction form
    915,710.52/1,263,676.54 = 513,302.52/x
  3. Step 3: Cross multiply
    915,710.52x = 1,263,676.54 × 513,302.52
  4. Step 4: Simplify right side
    915,710.52x = 648,648,352,446.88
  5. Step 5: Solve for x
    x = 648,648,352,446.88/915,710.52
  6. Step 6: Final answer
    x = 708,355.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.