Home / 787,652.40-1,178,854.20-724,666.80

Finding the Fourth Proportional to 787,652.40, 1,178,854.20 and 724,666.80

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Solution

The fourth proportional to 787,652.40, 1,178,854.20 and 724,666.80 is: 1,084,585.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,652.40 : 1,178,854.20 = 724,666.80 : x
  2. Step 2: Convert to fraction form
    787,652.40/1,178,854.20 = 724,666.80/x
  3. Step 3: Cross multiply
    787,652.40x = 1,178,854.20 × 724,666.80
  4. Step 4: Simplify right side
    787,652.40x = 854,276,500,780.56
  5. Step 5: Solve for x
    x = 854,276,500,780.56/787,652.40
  6. Step 6: Final answer
    x = 1,084,585.66

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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.