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Finding the Fourth Proportional to 474,674.38, 655,045.11 and 256,878.01

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Solution

The fourth proportional to 474,674.38, 655,045.11 and 256,878.01 is: 354,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,674.38 : 655,045.11 = 256,878.01 : x
  2. Step 2: Convert to fraction form
    474,674.38/655,045.11 = 256,878.01/x
  3. Step 3: Cross multiply
    474,674.38x = 655,045.11 × 256,878.01
  4. Step 4: Simplify right side
    474,674.38x = 168,266,684,317.03
  5. Step 5: Solve for x
    x = 168,266,684,317.03/474,674.38
  6. Step 6: Final answer
    x = 354,488.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.