Home / 1,200,517.60-1,800,779.45-490,545.64

Finding the Fourth Proportional to 1,200,517.60, 1,800,779.45 and 490,545.64

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Solution

The fourth proportional to 1,200,517.60, 1,800,779.45 and 490,545.64 is: 735,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,517.60 : 1,800,779.45 = 490,545.64 : x
  2. Step 2: Convert to fraction form
    1,200,517.60/1,800,779.45 = 490,545.64/x
  3. Step 3: Cross multiply
    1,200,517.60x = 1,800,779.45 × 490,545.64
  4. Step 4: Simplify right side
    1,200,517.60x = 883,364,500,844.42
  5. Step 5: Solve for x
    x = 883,364,500,844.42/1,200,517.60
  6. Step 6: Final answer
    x = 735,819.70

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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.