Home / 915,127.30-1,262,951.31-507,357.10

Finding the Fourth Proportional to 915,127.30, 1,262,951.31 and 507,357.10

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Solution

The fourth proportional to 915,127.30, 1,262,951.31 and 507,357.10 is: 700,194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,127.30 : 1,262,951.31 = 507,357.10 : x
  2. Step 2: Convert to fraction form
    915,127.30/1,262,951.31 = 507,357.10/x
  3. Step 3: Cross multiply
    915,127.30x = 1,262,951.31 × 507,357.10
  4. Step 4: Simplify right side
    915,127.30x = 640,767,314,082.80
  5. Step 5: Solve for x
    x = 640,767,314,082.80/915,127.30
  6. Step 6: Final answer
    x = 700,194.73

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1.5x scale

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.