Home / 1,091,335.20-1,637,002.80-713,421.60

Finding the Fourth Proportional to 1,091,335.20, 1,637,002.80 and 713,421.60

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Solution

The fourth proportional to 1,091,335.20, 1,637,002.80 and 713,421.60 is: 1,070,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,335.20 : 1,637,002.80 = 713,421.60 : x
  2. Step 2: Convert to fraction form
    1,091,335.20/1,637,002.80 = 713,421.60/x
  3. Step 3: Cross multiply
    1,091,335.20x = 1,637,002.80 × 713,421.60
  4. Step 4: Simplify right side
    1,091,335.20x = 1,167,873,156,780.48
  5. Step 5: Solve for x
    x = 1,167,873,156,780.48/1,091,335.20
  6. Step 6: Final answer
    x = 1,070,132.40

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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.