Home / 1,053,403.92-1,575,948.51-811,686.60

Finding the Fourth Proportional to 1,053,403.92, 1,575,948.51 and 811,686.60

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Solution

The fourth proportional to 1,053,403.92, 1,575,948.51 and 811,686.60 is: 1,214,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,403.92 : 1,575,948.51 = 811,686.60 : x
  2. Step 2: Convert to fraction form
    1,053,403.92/1,575,948.51 = 811,686.60/x
  3. Step 3: Cross multiply
    1,053,403.92x = 1,575,948.51 × 811,686.60
  4. Step 4: Simplify right side
    1,053,403.92x = 1,279,176,287,856.97
  5. Step 5: Solve for x
    x = 1,279,176,287,856.97/1,053,403.92
  6. Step 6: Final answer
    x = 1,214,326.49

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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.