Home / 877,755.27-1,317,013.20-309,542.35

Finding the Fourth Proportional to 877,755.27, 1,317,013.20 and 309,542.35

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Solution

The fourth proportional to 877,755.27, 1,317,013.20 and 309,542.35 is: 464,447.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,755.27 : 1,317,013.20 = 309,542.35 : x
  2. Step 2: Convert to fraction form
    877,755.27/1,317,013.20 = 309,542.35/x
  3. Step 3: Cross multiply
    877,755.27x = 1,317,013.20 × 309,542.35
  4. Step 4: Simplify right side
    877,755.27x = 407,671,360,909.02
  5. Step 5: Solve for x
    x = 407,671,360,909.02/877,755.27
  6. Step 6: Final answer
    x = 464,447.64

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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.