Home / 1,387,531.04-2,081,274.72-748,132.40

Finding the Fourth Proportional to 1,387,531.04, 2,081,274.72 and 748,132.40

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Solution

The fourth proportional to 1,387,531.04, 2,081,274.72 and 748,132.40 is: 1,122,186.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,531.04 : 2,081,274.72 = 748,132.40 : x
  2. Step 2: Convert to fraction form
    1,387,531.04/2,081,274.72 = 748,132.40/x
  3. Step 3: Cross multiply
    1,387,531.04x = 2,081,274.72 × 748,132.40
  4. Step 4: Simplify right side
    1,387,531.04x = 1,557,069,051,332.93
  5. Step 5: Solve for x
    x = 1,557,069,051,332.93/1,387,531.04
  6. Step 6: Final answer
    x = 1,122,186.82

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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.