Home / 915,921.32-1,263,144.02-571,789.02

Finding the Fourth Proportional to 915,921.32, 1,263,144.02 and 571,789.02

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Solution

The fourth proportional to 915,921.32, 1,263,144.02 and 571,789.02 is: 788,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,921.32 : 1,263,144.02 = 571,789.02 : x
  2. Step 2: Convert to fraction form
    915,921.32/1,263,144.02 = 571,789.02/x
  3. Step 3: Cross multiply
    915,921.32x = 1,263,144.02 × 571,789.02
  4. Step 4: Simplify right side
    915,921.32x = 722,251,886,408.82
  5. Step 5: Solve for x
    x = 722,251,886,408.82/915,921.32
  6. Step 6: Final answer
    x = 788,552.32

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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.