Home / 4,890,728.20-7,341,621.90-2,897,307.40

Finding the Fourth Proportional to 4,890,728.20, 7,341,621.90 and 2,897,307.40

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Solution

The fourth proportional to 4,890,728.20, 7,341,621.90 and 2,897,307.40 is: 4,349,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890,728.20 : 7,341,621.90 = 2,897,307.40 : x
  2. Step 2: Convert to fraction form
    4,890,728.20/7,341,621.90 = 2,897,307.40/x
  3. Step 3: Cross multiply
    4,890,728.20x = 7,341,621.90 × 2,897,307.40
  4. Step 4: Simplify right side
    4,890,728.20x = 21,270,935,458,872.06
  5. Step 5: Solve for x
    x = 21,270,935,458,872.06/4,890,728.20
  6. Step 6: Final answer
    x = 4,349,236.88

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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.