Home / 648,061.20-971,962.20-311,101.20

Finding the Fourth Proportional to 648,061.20, 971,962.20 and 311,101.20

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Solution

The fourth proportional to 648,061.20, 971,962.20 and 311,101.20 is: 466,589.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,061.20 : 971,962.20 = 311,101.20 : x
  2. Step 2: Convert to fraction form
    648,061.20/971,962.20 = 311,101.20/x
  3. Step 3: Cross multiply
    648,061.20x = 971,962.20 × 311,101.20
  4. Step 4: Simplify right side
    648,061.20x = 302,378,606,774.64
  5. Step 5: Solve for x
    x = 302,378,606,774.64/648,061.20
  6. Step 6: Final answer
    x = 466,589.59

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1.5x scale

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.