Home / 1,931,663.20-2,897,883.60-669,229.60

Finding the Fourth Proportional to 1,931,663.20, 2,897,883.60 and 669,229.60

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Solution

The fourth proportional to 1,931,663.20, 2,897,883.60 and 669,229.60 is: 1,003,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,663.20 : 2,897,883.60 = 669,229.60 : x
  2. Step 2: Convert to fraction form
    1,931,663.20/2,897,883.60 = 669,229.60/x
  3. Step 3: Cross multiply
    1,931,663.20x = 2,897,883.60 × 669,229.60
  4. Step 4: Simplify right side
    1,931,663.20x = 1,939,349,482,474.56
  5. Step 5: Solve for x
    x = 1,939,349,482,474.56/1,931,663.20
  6. Step 6: Final answer
    x = 1,003,979.10

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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.