Home / 727,987.60-1,091,981.40-476,045.20

Finding the Fourth Proportional to 727,987.60, 1,091,981.40 and 476,045.20

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Solution

The fourth proportional to 727,987.60, 1,091,981.40 and 476,045.20 is: 714,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,987.60 : 1,091,981.40 = 476,045.20 : x
  2. Step 2: Convert to fraction form
    727,987.60/1,091,981.40 = 476,045.20/x
  3. Step 3: Cross multiply
    727,987.60x = 1,091,981.40 × 476,045.20
  4. Step 4: Simplify right side
    727,987.60x = 519,832,503,959.28
  5. Step 5: Solve for x
    x = 519,832,503,959.28/727,987.60
  6. Step 6: Final answer
    x = 714,067.80

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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.