Home / 1,248,085.60-1,872,128.40-1,040,725.60

Finding the Fourth Proportional to 1,248,085.60, 1,872,128.40 and 1,040,725.60

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Solution

The fourth proportional to 1,248,085.60, 1,872,128.40 and 1,040,725.60 is: 1,561,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,085.60 : 1,872,128.40 = 1,040,725.60 : x
  2. Step 2: Convert to fraction form
    1,248,085.60/1,872,128.40 = 1,040,725.60/x
  3. Step 3: Cross multiply
    1,248,085.60x = 1,872,128.40 × 1,040,725.60
  4. Step 4: Simplify right side
    1,248,085.60x = 1,948,371,952,367.04
  5. Step 5: Solve for x
    x = 1,948,371,952,367.04/1,248,085.60
  6. Step 6: Final answer
    x = 1,561,088.40

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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.