Home / 854,445.60-1,281,862.80-499,276.80

Finding the Fourth Proportional to 854,445.60, 1,281,862.80 and 499,276.80

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Solution

The fourth proportional to 854,445.60, 1,281,862.80 and 499,276.80 is: 749,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,445.60 : 1,281,862.80 = 499,276.80 : x
  2. Step 2: Convert to fraction form
    854,445.60/1,281,862.80 = 499,276.80/x
  3. Step 3: Cross multiply
    854,445.60x = 1,281,862.80 × 499,276.80
  4. Step 4: Simplify right side
    854,445.60x = 640,004,356,823.04
  5. Step 5: Solve for x
    x = 640,004,356,823.04/854,445.60
  6. Step 6: Final answer
    x = 749,028.79

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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.