Home / 1,238,184.07-1,708,781.67-687,080.05

Finding the Fourth Proportional to 1,238,184.07, 1,708,781.67 and 687,080.05

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Solution

The fourth proportional to 1,238,184.07, 1,708,781.67 and 687,080.05 is: 948,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,184.07 : 1,708,781.67 = 687,080.05 : x
  2. Step 2: Convert to fraction form
    1,238,184.07/1,708,781.67 = 687,080.05/x
  3. Step 3: Cross multiply
    1,238,184.07x = 1,708,781.67 × 687,080.05
  4. Step 4: Simplify right side
    1,238,184.07x = 1,174,069,783,283.38
  5. Step 5: Solve for x
    x = 1,174,069,783,283.38/1,238,184.07
  6. Step 6: Final answer
    x = 948,219.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.