Home / 646,191.76-891,723.72-359,702.32

Finding the Fourth Proportional to 646,191.76, 891,723.72 and 359,702.32

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Solution

The fourth proportional to 646,191.76, 891,723.72 and 359,702.32 is: 496,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,191.76 : 891,723.72 = 359,702.32 : x
  2. Step 2: Convert to fraction form
    646,191.76/891,723.72 = 359,702.32/x
  3. Step 3: Cross multiply
    646,191.76x = 891,723.72 × 359,702.32
  4. Step 4: Simplify right side
    646,191.76x = 320,755,090,883.03
  5. Step 5: Solve for x
    x = 320,755,090,883.03/646,191.76
  6. Step 6: Final answer
    x = 496,377.56

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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.