Home / 2,079,013.20-3,120,488.10-1,779,831.60

Finding the Fourth Proportional to 2,079,013.20, 3,120,488.10 and 1,779,831.60

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Solution

The fourth proportional to 2,079,013.20, 3,120,488.10 and 1,779,831.60 is: 2,671,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,013.20 : 3,120,488.10 = 1,779,831.60 : x
  2. Step 2: Convert to fraction form
    2,079,013.20/3,120,488.10 = 1,779,831.60/x
  3. Step 3: Cross multiply
    2,079,013.20x = 3,120,488.10 × 1,779,831.60
  4. Step 4: Simplify right side
    2,079,013.20x = 5,553,943,327,803.96
  5. Step 5: Solve for x
    x = 5,553,943,327,803.96/2,079,013.20
  6. Step 6: Final answer
    x = 2,671,432.45

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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.