Home / 747,281.60-1,120,922.40-689,544.80

Finding the Fourth Proportional to 747,281.60, 1,120,922.40 and 689,544.80

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Solution

The fourth proportional to 747,281.60, 1,120,922.40 and 689,544.80 is: 1,034,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,281.60 : 1,120,922.40 = 689,544.80 : x
  2. Step 2: Convert to fraction form
    747,281.60/1,120,922.40 = 689,544.80/x
  3. Step 3: Cross multiply
    747,281.60x = 1,120,922.40 × 689,544.80
  4. Step 4: Simplify right side
    747,281.60x = 772,926,212,123.52
  5. Step 5: Solve for x
    x = 772,926,212,123.52/747,281.60
  6. Step 6: Final answer
    x = 1,034,317.20

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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.