Home / 2,207,931.90-3,046,498.92-1,289,983.60

Finding the Fourth Proportional to 2,207,931.90, 3,046,498.92 and 1,289,983.60

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Solution

The fourth proportional to 2,207,931.90, 3,046,498.92 and 1,289,983.60 is: 1,779,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207,931.90 : 3,046,498.92 = 1,289,983.60 : x
  2. Step 2: Convert to fraction form
    2,207,931.90/3,046,498.92 = 1,289,983.60/x
  3. Step 3: Cross multiply
    2,207,931.90x = 3,046,498.92 × 1,289,983.60
  4. Step 4: Simplify right side
    2,207,931.90x = 3,929,933,644,217.71
  5. Step 5: Solve for x
    x = 3,929,933,644,217.71/2,207,931.90
  6. Step 6: Final answer
    x = 1,779,916.15

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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.