Home / 808,620.80-1,212,931.20-745,635.20

Finding the Fourth Proportional to 808,620.80, 1,212,931.20 and 745,635.20

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Solution

The fourth proportional to 808,620.80, 1,212,931.20 and 745,635.20 is: 1,118,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,620.80 : 1,212,931.20 = 745,635.20 : x
  2. Step 2: Convert to fraction form
    808,620.80/1,212,931.20 = 745,635.20/x
  3. Step 3: Cross multiply
    808,620.80x = 1,212,931.20 × 745,635.20
  4. Step 4: Simplify right side
    808,620.80x = 904,404,197,898.24
  5. Step 5: Solve for x
    x = 904,404,197,898.24/808,620.80
  6. Step 6: Final answer
    x = 1,118,452.80

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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.