Home / 646,190.40-891,733.20-359,710.08

Finding the Fourth Proportional to 646,190.40, 891,733.20 and 359,710.08

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Solution

The fourth proportional to 646,190.40, 891,733.20 and 359,710.08 is: 496,394.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,190.40 : 891,733.20 = 359,710.08 : x
  2. Step 2: Convert to fraction form
    646,190.40/891,733.20 = 359,710.08/x
  3. Step 3: Cross multiply
    646,190.40x = 891,733.20 × 359,710.08
  4. Step 4: Simplify right side
    646,190.40x = 320,765,420,710.66
  5. Step 5: Solve for x
    x = 320,765,420,710.66/646,190.40
  6. Step 6: Final answer
    x = 496,394.59

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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.