Home / 1,915,411.68-2,643,285.24-1,056,002.40

Finding the Fourth Proportional to 1,915,411.68, 2,643,285.24 and 1,056,002.40

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Solution

The fourth proportional to 1,915,411.68, 2,643,285.24 and 1,056,002.40 is: 1,457,292.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,411.68 : 2,643,285.24 = 1,056,002.40 : x
  2. Step 2: Convert to fraction form
    1,915,411.68/2,643,285.24 = 1,056,002.40/x
  3. Step 3: Cross multiply
    1,915,411.68x = 2,643,285.24 × 1,056,002.40
  4. Step 4: Simplify right side
    1,915,411.68x = 2,791,315,557,324.58
  5. Step 5: Solve for x
    x = 2,791,315,557,324.58/1,915,411.68
  6. Step 6: Final answer
    x = 1,457,292.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.