Home / 915,780.92-1,263,694.19-507,881.52

Finding the Fourth Proportional to 915,780.92, 1,263,694.19 and 507,881.52

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Solution

The fourth proportional to 915,780.92, 1,263,694.19 and 507,881.52 is: 700,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,780.92 : 1,263,694.19 = 507,881.52 : x
  2. Step 2: Convert to fraction form
    915,780.92/1,263,694.19 = 507,881.52/x
  3. Step 3: Cross multiply
    915,780.92x = 1,263,694.19 × 507,881.52
  4. Step 4: Simplify right side
    915,780.92x = 641,806,923,492.96
  5. Step 5: Solve for x
    x = 641,806,923,492.96/915,780.92
  6. Step 6: Final answer
    x = 700,830.20

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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.