Home / 1,386,011.80-2,080,329.90-1,186,557.40

Finding the Fourth Proportional to 1,386,011.80, 2,080,329.90 and 1,186,557.40

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Solution

The fourth proportional to 1,386,011.80, 2,080,329.90 and 1,186,557.40 is: 1,780,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,011.80 : 2,080,329.90 = 1,186,557.40 : x
  2. Step 2: Convert to fraction form
    1,386,011.80/2,080,329.90 = 1,186,557.40/x
  3. Step 3: Cross multiply
    1,386,011.80x = 2,080,329.90 × 1,186,557.40
  4. Step 4: Simplify right side
    1,386,011.80x = 2,468,430,837,286.26
  5. Step 5: Solve for x
    x = 2,468,430,837,286.26/1,386,011.80
  6. Step 6: Final answer
    x = 1,780,959.47

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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.