Home / 1,115,292.80-1,671,092.40-641,151.20

Finding the Fourth Proportional to 1,115,292.80, 1,671,092.40 and 641,151.20

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Solution

The fourth proportional to 1,115,292.80, 1,671,092.40 and 641,151.20 is: 960,665.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,292.80 : 1,671,092.40 = 641,151.20 : x
  2. Step 2: Convert to fraction form
    1,115,292.80/1,671,092.40 = 641,151.20/x
  3. Step 3: Cross multiply
    1,115,292.80x = 1,671,092.40 × 641,151.20
  4. Step 4: Simplify right side
    1,115,292.80x = 1,071,422,897,570.88
  5. Step 5: Solve for x
    x = 1,071,422,897,570.88/1,115,292.80
  6. Step 6: Final answer
    x = 960,665.13

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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.