Home / 1,147,355.20-1,721,032.80-649,691.20

Finding the Fourth Proportional to 1,147,355.20, 1,721,032.80 and 649,691.20

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Solution

The fourth proportional to 1,147,355.20, 1,721,032.80 and 649,691.20 is: 974,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,355.20 : 1,721,032.80 = 649,691.20 : x
  2. Step 2: Convert to fraction form
    1,147,355.20/1,721,032.80 = 649,691.20/x
  3. Step 3: Cross multiply
    1,147,355.20x = 1,721,032.80 × 649,691.20
  4. Step 4: Simplify right side
    1,147,355.20x = 1,118,139,865,071.36
  5. Step 5: Solve for x
    x = 1,118,139,865,071.36/1,147,355.20
  6. Step 6: Final answer
    x = 974,536.80

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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.