Home / 768,276.60-1,060,280.46-424,178.88

Finding the Fourth Proportional to 768,276.60, 1,060,280.46 and 424,178.88

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Solution

The fourth proportional to 768,276.60, 1,060,280.46 and 424,178.88 is: 585,399.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,276.60 : 1,060,280.46 = 424,178.88 : x
  2. Step 2: Convert to fraction form
    768,276.60/1,060,280.46 = 424,178.88/x
  3. Step 3: Cross multiply
    768,276.60x = 1,060,280.46 × 424,178.88
  4. Step 4: Simplify right side
    768,276.60x = 449,748,578,008.69
  5. Step 5: Solve for x
    x = 449,748,578,008.69/768,276.60
  6. Step 6: Final answer
    x = 585,399.29

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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.