Home / 903,789.95-1,247,275.40-516,625.34

Finding the Fourth Proportional to 903,789.95, 1,247,275.40 and 516,625.34

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Solution

The fourth proportional to 903,789.95, 1,247,275.40 and 516,625.34 is: 712,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,789.95 : 1,247,275.40 = 516,625.34 : x
  2. Step 2: Convert to fraction form
    903,789.95/1,247,275.40 = 516,625.34/x
  3. Step 3: Cross multiply
    903,789.95x = 1,247,275.40 × 516,625.34
  4. Step 4: Simplify right side
    903,789.95x = 644,374,068,779.13
  5. Step 5: Solve for x
    x = 644,374,068,779.13/903,789.95
  6. Step 6: Final answer
    x = 712,968.84

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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.