Home / 768,778.38-1,060,979.76-429,312.24

Finding the Fourth Proportional to 768,778.38, 1,060,979.76 and 429,312.24

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Solution

The fourth proportional to 768,778.38, 1,060,979.76 and 429,312.24 is: 592,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,778.38 : 1,060,979.76 = 429,312.24 : x
  2. Step 2: Convert to fraction form
    768,778.38/1,060,979.76 = 429,312.24/x
  3. Step 3: Cross multiply
    768,778.38x = 1,060,979.76 × 429,312.24
  4. Step 4: Simplify right side
    768,778.38x = 455,491,597,360.26
  5. Step 5: Solve for x
    x = 455,491,597,360.26/768,778.38
  6. Step 6: Final answer
    x = 592,487.52

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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.