Home / 1,319,487.60-1,978,972.20-433,023.60

Finding the Fourth Proportional to 1,319,487.60, 1,978,972.20 and 433,023.60

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Solution

The fourth proportional to 1,319,487.60, 1,978,972.20 and 433,023.60 is: 649,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,487.60 : 1,978,972.20 = 433,023.60 : x
  2. Step 2: Convert to fraction form
    1,319,487.60/1,978,972.20 = 433,023.60/x
  3. Step 3: Cross multiply
    1,319,487.60x = 1,978,972.20 × 433,023.60
  4. Step 4: Simplify right side
    1,319,487.60x = 856,941,666,343.92
  5. Step 5: Solve for x
    x = 856,941,666,343.92/1,319,487.60
  6. Step 6: Final answer
    x = 649,450.34

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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.