Home / 646,044.20-891,532-359,564.36

Finding the Fourth Proportional to 646,044.20, 891,532 and 359,564.36

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Solution

The fourth proportional to 646,044.20, 891,532 and 359,564.36 is: 496,193.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,044.20 : 891,532 = 359,564.36 : x
  2. Step 2: Convert to fraction form
    646,044.20/891,532 = 359,564.36/x
  3. Step 3: Cross multiply
    646,044.20x = 891,532 × 359,564.36
  4. Step 4: Simplify right side
    646,044.20x = 320,563,132,999.52
  5. Step 5: Solve for x
    x = 320,563,132,999.52/646,044.20
  6. Step 6: Final answer
    x = 496,193.81

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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.