Home / 1,402,333.20-2,101,839.03-643,535.10

Finding the Fourth Proportional to 1,402,333.20, 2,101,839.03 and 643,535.10

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Solution

The fourth proportional to 1,402,333.20, 2,101,839.03 and 643,535.10 is: 964,540.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,333.20 : 2,101,839.03 = 643,535.10 : x
  2. Step 2: Convert to fraction form
    1,402,333.20/2,101,839.03 = 643,535.10/x
  3. Step 3: Cross multiply
    1,402,333.20x = 2,101,839.03 × 643,535.10
  4. Step 4: Simplify right side
    1,402,333.20x = 1,352,607,190,354.95
  5. Step 5: Solve for x
    x = 1,352,607,190,354.95/1,402,333.20
  6. Step 6: Final answer
    x = 964,540.52

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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.