Home / 665,001.30-997,631.55-285,921.30

Finding the Fourth Proportional to 665,001.30, 997,631.55 and 285,921.30

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Solution

The fourth proportional to 665,001.30, 997,631.55 and 285,921.30 is: 428,937.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,001.30 : 997,631.55 = 285,921.30 : x
  2. Step 2: Convert to fraction form
    665,001.30/997,631.55 = 285,921.30/x
  3. Step 3: Cross multiply
    665,001.30x = 997,631.55 × 285,921.30
  4. Step 4: Simplify right side
    665,001.30x = 285,244,109,697.02
  5. Step 5: Solve for x
    x = 285,244,109,697.02/665,001.30
  6. Step 6: Final answer
    x = 428,937.67

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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.