Home / 642,825.59-887,094.36-352,433.68

Finding the Fourth Proportional to 642,825.59, 887,094.36 and 352,433.68

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Solution

The fourth proportional to 642,825.59, 887,094.36 and 352,433.68 is: 486,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,825.59 : 887,094.36 = 352,433.68 : x
  2. Step 2: Convert to fraction form
    642,825.59/887,094.36 = 352,433.68/x
  3. Step 3: Cross multiply
    642,825.59x = 887,094.36 × 352,433.68
  4. Step 4: Simplify right side
    642,825.59x = 312,641,931,583.00
  5. Step 5: Solve for x
    x = 312,641,931,583.00/642,825.59
  6. Step 6: Final answer
    x = 486,355.76

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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.