Home / 657,346.40-985,339.20-357,192.80

Finding the Fourth Proportional to 657,346.40, 985,339.20 and 357,192.80

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Solution

The fourth proportional to 657,346.40, 985,339.20 and 357,192.80 is: 535,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,346.40 : 985,339.20 = 357,192.80 : x
  2. Step 2: Convert to fraction form
    657,346.40/985,339.20 = 357,192.80/x
  3. Step 3: Cross multiply
    657,346.40x = 985,339.20 × 357,192.80
  4. Step 4: Simplify right side
    657,346.40x = 351,956,067,797.76
  5. Step 5: Solve for x
    x = 351,956,067,797.76/657,346.40
  6. Step 6: Final answer
    x = 535,419.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.