Home / 816,566.25-1,225,098.45-417,487.20

Finding the Fourth Proportional to 816,566.25, 1,225,098.45 and 417,487.20

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Solution

The fourth proportional to 816,566.25, 1,225,098.45 and 417,487.20 is: 626,358.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,566.25 : 1,225,098.45 = 417,487.20 : x
  2. Step 2: Convert to fraction form
    816,566.25/1,225,098.45 = 417,487.20/x
  3. Step 3: Cross multiply
    816,566.25x = 1,225,098.45 × 417,487.20
  4. Step 4: Simplify right side
    816,566.25x = 511,462,921,614.84
  5. Step 5: Solve for x
    x = 511,462,921,614.84/816,566.25
  6. Step 6: Final answer
    x = 626,358.14

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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.