Home / 716,977.50-989,494.86-394,753.02

Finding the Fourth Proportional to 716,977.50, 989,494.86 and 394,753.02

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Solution

The fourth proportional to 716,977.50, 989,494.86 and 394,753.02 is: 544,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,977.50 : 989,494.86 = 394,753.02 : x
  2. Step 2: Convert to fraction form
    716,977.50/989,494.86 = 394,753.02/x
  3. Step 3: Cross multiply
    716,977.50x = 989,494.86 × 394,753.02
  4. Step 4: Simplify right side
    716,977.50x = 390,606,084,259.48
  5. Step 5: Solve for x
    x = 390,606,084,259.48/716,977.50
  6. Step 6: Final answer
    x = 544,795.46

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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.