Home / 1,067,501.10-1,601,251.65-1,021,428.30

Finding the Fourth Proportional to 1,067,501.10, 1,601,251.65 and 1,021,428.30

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Solution

The fourth proportional to 1,067,501.10, 1,601,251.65 and 1,021,428.30 is: 1,532,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067,501.10 : 1,601,251.65 = 1,021,428.30 : x
  2. Step 2: Convert to fraction form
    1,067,501.10/1,601,251.65 = 1,021,428.30/x
  3. Step 3: Cross multiply
    1,067,501.10x = 1,601,251.65 × 1,021,428.30
  4. Step 4: Simplify right side
    1,067,501.10x = 1,635,563,750,731.70
  5. Step 5: Solve for x
    x = 1,635,563,750,731.70/1,067,501.10
  6. Step 6: Final answer
    x = 1,532,142.45

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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.