Home / 3,120,690.60-4,681,035.90-876,828.60

Finding the Fourth Proportional to 3,120,690.60, 4,681,035.90 and 876,828.60

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Solution

The fourth proportional to 3,120,690.60, 4,681,035.90 and 876,828.60 is: 1,315,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,690.60 : 4,681,035.90 = 876,828.60 : x
  2. Step 2: Convert to fraction form
    3,120,690.60/4,681,035.90 = 876,828.60/x
  3. Step 3: Cross multiply
    3,120,690.60x = 4,681,035.90 × 876,828.60
  4. Step 4: Simplify right side
    3,120,690.60x = 4,104,466,154,746.74
  5. Step 5: Solve for x
    x = 4,104,466,154,746.74/3,120,690.60
  6. Step 6: Final answer
    x = 1,315,242.90

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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.