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Finding the Fourth Proportional to 2,988,000, 4,482,038.88 and 993,456

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Solution

The fourth proportional to 2,988,000, 4,482,038.88 and 993,456 is: 1,490,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,000 : 4,482,038.88 = 993,456 : x
  2. Step 2: Convert to fraction form
    2,988,000/4,482,038.88 = 993,456/x
  3. Step 3: Cross multiply
    2,988,000x = 4,482,038.88 × 993,456
  4. Step 4: Simplify right side
    2,988,000x = 4,452,708,417,569.28
  5. Step 5: Solve for x
    x = 4,452,708,417,569.28/2,988,000
  6. Step 6: Final answer
    x = 1,490,196.93

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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.