Home / 2,758,875.90-4,138,443.45-865,679.10

Finding the Fourth Proportional to 2,758,875.90, 4,138,443.45 and 865,679.10

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Solution

The fourth proportional to 2,758,875.90, 4,138,443.45 and 865,679.10 is: 1,298,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,875.90 : 4,138,443.45 = 865,679.10 : x
  2. Step 2: Convert to fraction form
    2,758,875.90/4,138,443.45 = 865,679.10/x
  3. Step 3: Cross multiply
    2,758,875.90x = 4,138,443.45 × 865,679.10
  4. Step 4: Simplify right side
    2,758,875.90x = 3,582,564,001,196.90
  5. Step 5: Solve for x
    x = 3,582,564,001,196.90/2,758,875.90
  6. Step 6: Final answer
    x = 1,298,559.32

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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.