Home / 1,326,499.20-1,987,707.60-987,951.60

Finding the Fourth Proportional to 1,326,499.20, 1,987,707.60 and 987,951.60

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Solution

The fourth proportional to 1,326,499.20, 1,987,707.60 and 987,951.60 is: 1,480,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,499.20 : 1,987,707.60 = 987,951.60 : x
  2. Step 2: Convert to fraction form
    1,326,499.20/1,987,707.60 = 987,951.60/x
  3. Step 3: Cross multiply
    1,326,499.20x = 1,987,707.60 × 987,951.60
  4. Step 4: Simplify right side
    1,326,499.20x = 1,963,758,903,752.16
  5. Step 5: Solve for x
    x = 1,963,758,903,752.16/1,326,499.20
  6. Step 6: Final answer
    x = 1,480,407.15

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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.