Home / 908,543.80-1,253,846.21-500,645.42

Finding the Fourth Proportional to 908,543.80, 1,253,846.21 and 500,645.42

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Solution

The fourth proportional to 908,543.80, 1,253,846.21 and 500,645.42 is: 690,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,543.80 : 1,253,846.21 = 500,645.42 : x
  2. Step 2: Convert to fraction form
    908,543.80/1,253,846.21 = 500,645.42/x
  3. Step 3: Cross multiply
    908,543.80x = 1,253,846.21 × 500,645.42
  4. Step 4: Simplify right side
    908,543.80x = 627,732,362,420.86
  5. Step 5: Solve for x
    x = 627,732,362,420.86/908,543.80
  6. Step 6: Final answer
    x = 690,921.41

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1.5x scale

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.