Home / 1,478,281.40-2,217,422.10-1,318,849.10

Finding the Fourth Proportional to 1,478,281.40, 2,217,422.10 and 1,318,849.10

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Solution

The fourth proportional to 1,478,281.40, 2,217,422.10 and 1,318,849.10 is: 1,978,273.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,281.40 : 2,217,422.10 = 1,318,849.10 : x
  2. Step 2: Convert to fraction form
    1,478,281.40/2,217,422.10 = 1,318,849.10/x
  3. Step 3: Cross multiply
    1,478,281.40x = 2,217,422.10 × 1,318,849.10
  4. Step 4: Simplify right side
    1,478,281.40x = 2,924,445,140,905.11
  5. Step 5: Solve for x
    x = 2,924,445,140,905.11/1,478,281.40
  6. Step 6: Final answer
    x = 1,978,273.65

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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.