Home / 1,326,117.60-1,984,510.80-1,214,143.20

Finding the Fourth Proportional to 1,326,117.60, 1,984,510.80 and 1,214,143.20

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Solution

The fourth proportional to 1,326,117.60, 1,984,510.80 and 1,214,143.20 is: 1,816,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,117.60 : 1,984,510.80 = 1,214,143.20 : x
  2. Step 2: Convert to fraction form
    1,326,117.60/1,984,510.80 = 1,214,143.20/x
  3. Step 3: Cross multiply
    1,326,117.60x = 1,984,510.80 × 1,214,143.20
  4. Step 4: Simplify right side
    1,326,117.60x = 2,409,480,293,146.56
  5. Step 5: Solve for x
    x = 2,409,480,293,146.56/1,326,117.60
  6. Step 6: Final answer
    x = 1,816,943.15

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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.