Home / 985,209.72-1,359,666.42-549,763.98

Finding the Fourth Proportional to 985,209.72, 1,359,666.42 and 549,763.98

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Solution

The fourth proportional to 985,209.72, 1,359,666.42 and 549,763.98 is: 758,717.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,209.72 : 1,359,666.42 = 549,763.98 : x
  2. Step 2: Convert to fraction form
    985,209.72/1,359,666.42 = 549,763.98/x
  3. Step 3: Cross multiply
    985,209.72x = 1,359,666.42 × 549,763.98
  4. Step 4: Simplify right side
    985,209.72x = 747,495,622,531.55
  5. Step 5: Solve for x
    x = 747,495,622,531.55/985,209.72
  6. Step 6: Final answer
    x = 758,717.26

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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.