Home / 920,665.20-1,379,287.08-500,294.64

Finding the Fourth Proportional to 920,665.20, 1,379,287.08 and 500,294.64

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Solution

The fourth proportional to 920,665.20, 1,379,287.08 and 500,294.64 is: 749,512.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,665.20 : 1,379,287.08 = 500,294.64 : x
  2. Step 2: Convert to fraction form
    920,665.20/1,379,287.08 = 500,294.64/x
  3. Step 3: Cross multiply
    920,665.20x = 1,379,287.08 × 500,294.64
  4. Step 4: Simplify right side
    920,665.20x = 690,049,933,145.25
  5. Step 5: Solve for x
    x = 690,049,933,145.25/920,665.20
  6. Step 6: Final answer
    x = 749,512.35

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1.5x scale

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.