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Finding the Fourth Proportional to 657,223.20, 986,272.20 and 372,913.20

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Solution

The fourth proportional to 657,223.20, 986,272.20 and 372,913.20 is: 559,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,223.20 : 986,272.20 = 372,913.20 : x
  2. Step 2: Convert to fraction form
    657,223.20/986,272.20 = 372,913.20/x
  3. Step 3: Cross multiply
    657,223.20x = 986,272.20 × 372,913.20
  4. Step 4: Simplify right side
    657,223.20x = 367,793,922,173.04
  5. Step 5: Solve for x
    x = 367,793,922,173.04/657,223.20
  6. Step 6: Final answer
    x = 559,617.98

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1.5x scale

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.