Home / 1,240,355.53-1,857,820.71-879,432.36

Finding the Fourth Proportional to 1,240,355.53, 1,857,820.71 and 879,432.36

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Solution

The fourth proportional to 1,240,355.53, 1,857,820.71 and 879,432.36 is: 1,317,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,355.53 : 1,857,820.71 = 879,432.36 : x
  2. Step 2: Convert to fraction form
    1,240,355.53/1,857,820.71 = 879,432.36/x
  3. Step 3: Cross multiply
    1,240,355.53x = 1,857,820.71 × 879,432.36
  4. Step 4: Simplify right side
    1,240,355.53x = 1,633,827,651,452.18
  5. Step 5: Solve for x
    x = 1,633,827,651,452.18/1,240,355.53
  6. Step 6: Final answer
    x = 1,317,225.27

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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.