Home / 1,125,934.56-1,553,403.60-642,151.80

Finding the Fourth Proportional to 1,125,934.56, 1,553,403.60 and 642,151.80

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Solution

The fourth proportional to 1,125,934.56, 1,553,403.60 and 642,151.80 is: 885,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,934.56 : 1,553,403.60 = 642,151.80 : x
  2. Step 2: Convert to fraction form
    1,125,934.56/1,553,403.60 = 642,151.80/x
  3. Step 3: Cross multiply
    1,125,934.56x = 1,553,403.60 × 642,151.80
  4. Step 4: Simplify right side
    1,125,934.56x = 997,520,917,866.48
  5. Step 5: Solve for x
    x = 997,520,917,866.48/1,125,934.56
  6. Step 6: Final answer
    x = 885,949.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.