Home / 664,983.45-997,475.18-455,031.45

Finding the Fourth Proportional to 664,983.45, 997,475.18 and 455,031.45

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Solution

The fourth proportional to 664,983.45, 997,475.18 and 455,031.45 is: 682,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,983.45 : 997,475.18 = 455,031.45 : x
  2. Step 2: Convert to fraction form
    664,983.45/997,475.18 = 455,031.45/x
  3. Step 3: Cross multiply
    664,983.45x = 997,475.18 × 455,031.45
  4. Step 4: Simplify right side
    664,983.45x = 453,882,575,219.25
  5. Step 5: Solve for x
    x = 453,882,575,219.25/664,983.45
  6. Step 6: Final answer
    x = 682,547.18

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Double scale
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Similar ratio
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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.