Home / 1,382,139.90-2,073,314.80-471,039.20

Finding the Fourth Proportional to 1,382,139.90, 2,073,314.80 and 471,039.20

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Solution

The fourth proportional to 1,382,139.90, 2,073,314.80 and 471,039.20 is: 706,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,139.90 : 2,073,314.80 = 471,039.20 : x
  2. Step 2: Convert to fraction form
    1,382,139.90/2,073,314.80 = 471,039.20/x
  3. Step 3: Cross multiply
    1,382,139.90x = 2,073,314.80 × 471,039.20
  4. Step 4: Simplify right side
    1,382,139.90x = 976,612,544,740.16
  5. Step 5: Solve for x
    x = 976,612,544,740.16/1,382,139.90
  6. Step 6: Final answer
    x = 706,594.57

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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.