Home / 657,266.40-985,219.20-357,112.80

Finding the Fourth Proportional to 657,266.40, 985,219.20 and 357,112.80

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Solution

The fourth proportional to 657,266.40, 985,219.20 and 357,112.80 is: 535,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,266.40 : 985,219.20 = 357,112.80 : x
  2. Step 2: Convert to fraction form
    657,266.40/985,219.20 = 357,112.80/x
  3. Step 3: Cross multiply
    657,266.40x = 985,219.20 × 357,112.80
  4. Step 4: Simplify right side
    657,266.40x = 351,834,387,125.76
  5. Step 5: Solve for x
    x = 351,834,387,125.76/657,266.40
  6. Step 6: Final answer
    x = 535,299.52

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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.