Home / 683,143.80-1,024,715.70-672,646.20

Finding the Fourth Proportional to 683,143.80, 1,024,715.70 and 672,646.20

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Solution

The fourth proportional to 683,143.80, 1,024,715.70 and 672,646.20 is: 1,008,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,143.80 : 1,024,715.70 = 672,646.20 : x
  2. Step 2: Convert to fraction form
    683,143.80/1,024,715.70 = 672,646.20/x
  3. Step 3: Cross multiply
    683,143.80x = 1,024,715.70 × 672,646.20
  4. Step 4: Simplify right side
    683,143.80x = 689,271,121,685.34
  5. Step 5: Solve for x
    x = 689,271,121,685.34/683,143.80
  6. Step 6: Final answer
    x = 1,008,969.30

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Double scale
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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.