Home / 917,268.30-1,375,343.55-411,731.10

Finding the Fourth Proportional to 917,268.30, 1,375,343.55 and 411,731.10

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Solution

The fourth proportional to 917,268.30, 1,375,343.55 and 411,731.10 is: 617,345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,268.30 : 1,375,343.55 = 411,731.10 : x
  2. Step 2: Convert to fraction form
    917,268.30/1,375,343.55 = 411,731.10/x
  3. Step 3: Cross multiply
    917,268.30x = 1,375,343.55 × 411,731.10
  4. Step 4: Simplify right side
    917,268.30x = 566,271,712,719.41
  5. Step 5: Solve for x
    x = 566,271,712,719.41/917,268.30
  6. Step 6: Final answer
    x = 617,345.78

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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.