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Finding the Fourth Proportional to 474,758.40, 655,472.16 and 423,683.40

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Solution

The fourth proportional to 474,758.40, 655,472.16 and 423,683.40 is: 584,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,758.40 : 655,472.16 = 423,683.40 : x
  2. Step 2: Convert to fraction form
    474,758.40/655,472.16 = 423,683.40/x
  3. Step 3: Cross multiply
    474,758.40x = 655,472.16 × 423,683.40
  4. Step 4: Simplify right side
    474,758.40x = 277,712,673,354.14
  5. Step 5: Solve for x
    x = 277,712,673,354.14/474,758.40
  6. Step 6: Final answer
    x = 584,955.79

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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.