Home / 2,990,520.40-4,486,436.70-968,420.20

Finding the Fourth Proportional to 2,990,520.40, 4,486,436.70 and 968,420.20

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Solution

The fourth proportional to 2,990,520.40, 4,486,436.70 and 968,420.20 is: 1,452,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,520.40 : 4,486,436.70 = 968,420.20 : x
  2. Step 2: Convert to fraction form
    2,990,520.40/4,486,436.70 = 968,420.20/x
  3. Step 3: Cross multiply
    2,990,520.40x = 4,486,436.70 × 968,420.20
  4. Step 4: Simplify right side
    2,990,520.40x = 4,344,755,926,301.34
  5. Step 5: Solve for x
    x = 4,344,755,926,301.34/2,990,520.40
  6. Step 6: Final answer
    x = 1,452,842.76

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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.