Home / 1,458,043.80-2,187,065.70-817,690.20

Finding the Fourth Proportional to 1,458,043.80, 2,187,065.70 and 817,690.20

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Solution

The fourth proportional to 1,458,043.80, 2,187,065.70 and 817,690.20 is: 1,226,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,043.80 : 2,187,065.70 = 817,690.20 : x
  2. Step 2: Convert to fraction form
    1,458,043.80/2,187,065.70 = 817,690.20/x
  3. Step 3: Cross multiply
    1,458,043.80x = 2,187,065.70 × 817,690.20
  4. Step 4: Simplify right side
    1,458,043.80x = 1,788,342,189,646.14
  5. Step 5: Solve for x
    x = 1,788,342,189,646.14/1,458,043.80
  6. Step 6: Final answer
    x = 1,226,535.30

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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.