Home / 985,314.60-1,357,876.17-712,921.32

Finding the Fourth Proportional to 985,314.60, 1,357,876.17 and 712,921.32

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Solution

The fourth proportional to 985,314.60, 1,357,876.17 and 712,921.32 is: 982,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,314.60 : 1,357,876.17 = 712,921.32 : x
  2. Step 2: Convert to fraction form
    985,314.60/1,357,876.17 = 712,921.32/x
  3. Step 3: Cross multiply
    985,314.60x = 1,357,876.17 × 712,921.32
  4. Step 4: Simplify right side
    985,314.60x = 968,058,871,512.94
  5. Step 5: Solve for x
    x = 968,058,871,512.94/985,314.60
  6. Step 6: Final answer
    x = 982,487.09

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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.