Home / 657,875.22-985,795.67-513,438.57

Finding the Fourth Proportional to 657,875.22, 985,795.67 and 513,438.57

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Solution

The fourth proportional to 657,875.22, 985,795.67 and 513,438.57 is: 769,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,875.22 : 985,795.67 = 513,438.57 : x
  2. Step 2: Convert to fraction form
    657,875.22/985,795.67 = 513,438.57/x
  3. Step 3: Cross multiply
    657,875.22x = 985,795.67 × 513,438.57
  4. Step 4: Simplify right side
    657,875.22x = 506,145,517,512.50
  5. Step 5: Solve for x
    x = 506,145,517,512.50/657,875.22
  6. Step 6: Final answer
    x = 769,364.01

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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.