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Finding the Fourth Proportional to 657,284.40, 986,704.20 and 373,201.20

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Solution

The fourth proportional to 657,284.40, 986,704.20 and 373,201.20 is: 560,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,284.40 : 986,704.20 = 373,201.20 : x
  2. Step 2: Convert to fraction form
    657,284.40/986,704.20 = 373,201.20/x
  3. Step 3: Cross multiply
    657,284.40x = 986,704.20 × 373,201.20
  4. Step 4: Simplify right side
    657,284.40x = 368,239,191,485.04
  5. Step 5: Solve for x
    x = 368,239,191,485.04/657,284.40
  6. Step 6: Final answer
    x = 560,243.32

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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.