Home / 1,769,449.40-2,650,674.90-1,643,478.20

Finding the Fourth Proportional to 1,769,449.40, 2,650,674.90 and 1,643,478.20

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Solution

The fourth proportional to 1,769,449.40, 2,650,674.90 and 1,643,478.20 is: 2,461,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,449.40 : 2,650,674.90 = 1,643,478.20 : x
  2. Step 2: Convert to fraction form
    1,769,449.40/2,650,674.90 = 1,643,478.20/x
  3. Step 3: Cross multiply
    1,769,449.40x = 2,650,674.90 × 1,643,478.20
  4. Step 4: Simplify right side
    1,769,449.40x = 4,356,326,413,437.18
  5. Step 5: Solve for x
    x = 4,356,326,413,437.18/1,769,449.40
  6. Step 6: Final answer
    x = 2,461,967.22

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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.