Home / 1,867,920.40-2,801,880.60-921,168.10

Finding the Fourth Proportional to 1,867,920.40, 2,801,880.60 and 921,168.10

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Solution

The fourth proportional to 1,867,920.40, 2,801,880.60 and 921,168.10 is: 1,381,752.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867,920.40 : 2,801,880.60 = 921,168.10 : x
  2. Step 2: Convert to fraction form
    1,867,920.40/2,801,880.60 = 921,168.10/x
  3. Step 3: Cross multiply
    1,867,920.40x = 2,801,880.60 × 921,168.10
  4. Step 4: Simplify right side
    1,867,920.40x = 2,581,003,028,728.86
  5. Step 5: Solve for x
    x = 2,581,003,028,728.86/1,867,920.40
  6. Step 6: Final answer
    x = 1,381,752.15

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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.