Home / 766,925.20-1,149,075.60-486,114.40

Finding the Fourth Proportional to 766,925.20, 1,149,075.60 and 486,114.40

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Solution

The fourth proportional to 766,925.20, 1,149,075.60 and 486,114.40 is: 728,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,925.20 : 1,149,075.60 = 486,114.40 : x
  2. Step 2: Convert to fraction form
    766,925.20/1,149,075.60 = 486,114.40/x
  3. Step 3: Cross multiply
    766,925.20x = 1,149,075.60 × 486,114.40
  4. Step 4: Simplify right side
    766,925.20x = 558,582,195,848.64
  5. Step 5: Solve for x
    x = 558,582,195,848.64/766,925.20
  6. Step 6: Final answer
    x = 728,339.86

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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.