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Finding the Fourth Proportional to 978,948.13, 1,466,514.04 and 551,176.40

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Solution

The fourth proportional to 978,948.13, 1,466,514.04 and 551,176.40 is: 825,690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,948.13 : 1,466,514.04 = 551,176.40 : x
  2. Step 2: Convert to fraction form
    978,948.13/1,466,514.04 = 551,176.40/x
  3. Step 3: Cross multiply
    978,948.13x = 1,466,514.04 × 551,176.40
  4. Step 4: Simplify right side
    978,948.13x = 808,307,929,116.66
  5. Step 5: Solve for x
    x = 808,307,929,116.66/978,948.13
  6. Step 6: Final answer
    x = 825,690.25

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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.