Home / 745,849.20-1,118,117.70-446,448.90

Finding the Fourth Proportional to 745,849.20, 1,118,117.70 and 446,448.90

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Solution

The fourth proportional to 745,849.20, 1,118,117.70 and 446,448.90 is: 669,280.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,849.20 : 1,118,117.70 = 446,448.90 : x
  2. Step 2: Convert to fraction form
    745,849.20/1,118,117.70 = 446,448.90/x
  3. Step 3: Cross multiply
    745,849.20x = 1,118,117.70 × 446,448.90
  4. Step 4: Simplify right side
    745,849.20x = 499,182,417,235.53
  5. Step 5: Solve for x
    x = 499,182,417,235.53/745,849.20
  6. Step 6: Final answer
    x = 669,280.62

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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.