Home / 2,989,658.40-4,484,487.60-2,758,711.20

Finding the Fourth Proportional to 2,989,658.40, 4,484,487.60 and 2,758,711.20

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Solution

The fourth proportional to 2,989,658.40, 4,484,487.60 and 2,758,711.20 is: 4,138,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,658.40 : 4,484,487.60 = 2,758,711.20 : x
  2. Step 2: Convert to fraction form
    2,989,658.40/4,484,487.60 = 2,758,711.20/x
  3. Step 3: Cross multiply
    2,989,658.40x = 4,484,487.60 × 2,758,711.20
  4. Step 4: Simplify right side
    2,989,658.40x = 12,371,406,168,381.12
  5. Step 5: Solve for x
    x = 12,371,406,168,381.12/2,989,658.40
  6. Step 6: Final answer
    x = 4,138,066.80

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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.