Home / 915,641.28-1,263,523.28-507,728.12

Finding the Fourth Proportional to 915,641.28, 1,263,523.28 and 507,728.12

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Solution

The fourth proportional to 915,641.28, 1,263,523.28 and 507,728.12 is: 700,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,641.28 : 1,263,523.28 = 507,728.12 : x
  2. Step 2: Convert to fraction form
    915,641.28/1,263,523.28 = 507,728.12/x
  3. Step 3: Cross multiply
    915,641.28x = 1,263,523.28 × 507,728.12
  4. Step 4: Simplify right side
    915,641.28x = 641,526,290,674.38
  5. Step 5: Solve for x
    x = 641,526,290,674.38/915,641.28
  6. Step 6: Final answer
    x = 700,630.59

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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.