Home / 908,649.35-1,253,941.03-521,433.93

Finding the Fourth Proportional to 908,649.35, 1,253,941.03 and 521,433.93

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Solution

The fourth proportional to 908,649.35, 1,253,941.03 and 521,433.93 is: 719,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,649.35 : 1,253,941.03 = 521,433.93 : x
  2. Step 2: Convert to fraction form
    908,649.35/1,253,941.03 = 521,433.93/x
  3. Step 3: Cross multiply
    908,649.35x = 1,253,941.03 × 521,433.93
  4. Step 4: Simplify right side
    908,649.35x = 653,847,404,615.22
  5. Step 5: Solve for x
    x = 653,847,404,615.22/908,649.35
  6. Step 6: Final answer
    x = 719,581.66

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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.