Home / 3,078,000.20-4,617,000.30-2,989,426.70

Finding the Fourth Proportional to 3,078,000.20, 4,617,000.30 and 2,989,426.70

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Solution

The fourth proportional to 3,078,000.20, 4,617,000.30 and 2,989,426.70 is: 4,484,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078,000.20 : 4,617,000.30 = 2,989,426.70 : x
  2. Step 2: Convert to fraction form
    3,078,000.20/4,617,000.30 = 2,989,426.70/x
  3. Step 3: Cross multiply
    3,078,000.20x = 4,617,000.30 × 2,989,426.70
  4. Step 4: Simplify right side
    3,078,000.20x = 13,802,183,970,728.01
  5. Step 5: Solve for x
    x = 13,802,183,970,728.01/3,078,000.20
  6. Step 6: Final answer
    x = 4,484,140.05

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1.5x scale

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.