Home / 1,125,329.28-1,687,640.96-326,666.24

Finding the Fourth Proportional to 1,125,329.28, 1,687,640.96 and 326,666.24

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Solution

The fourth proportional to 1,125,329.28, 1,687,640.96 and 326,666.24 is: 489,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,329.28 : 1,687,640.96 = 326,666.24 : x
  2. Step 2: Convert to fraction form
    1,125,329.28/1,687,640.96 = 326,666.24/x
  3. Step 3: Cross multiply
    1,125,329.28x = 1,687,640.96 × 326,666.24
  4. Step 4: Simplify right side
    1,125,329.28x = 551,295,326,873.19
  5. Step 5: Solve for x
    x = 551,295,326,873.19/1,125,329.28
  6. Step 6: Final answer
    x = 489,896.90

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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.