Home / 745,773.20-1,116,035.40-520,074.80

Finding the Fourth Proportional to 745,773.20, 1,116,035.40 and 520,074.80

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Solution

The fourth proportional to 745,773.20, 1,116,035.40 and 520,074.80 is: 778,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,773.20 : 1,116,035.40 = 520,074.80 : x
  2. Step 2: Convert to fraction form
    745,773.20/1,116,035.40 = 520,074.80/x
  3. Step 3: Cross multiply
    745,773.20x = 1,116,035.40 × 520,074.80
  4. Step 4: Simplify right side
    745,773.20x = 580,421,887,447.92
  5. Step 5: Solve for x
    x = 580,421,887,447.92/745,773.20
  6. Step 6: Final answer
    x = 778,282.04

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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.