Home / 648,001.20-971,872.20-311,041.20

Finding the Fourth Proportional to 648,001.20, 971,872.20 and 311,041.20

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Solution

The fourth proportional to 648,001.20, 971,872.20 and 311,041.20 is: 466,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,001.20 : 971,872.20 = 311,041.20 : x
  2. Step 2: Convert to fraction form
    648,001.20/971,872.20 = 311,041.20/x
  3. Step 3: Cross multiply
    648,001.20x = 971,872.20 × 311,041.20
  4. Step 4: Simplify right side
    648,001.20x = 302,292,295,334.64
  5. Step 5: Solve for x
    x = 302,292,295,334.64/648,001.20
  6. Step 6: Final answer
    x = 466,499.59

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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.