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Finding the Fourth Proportional to 474,574.30, 655,218.18 and 423,499.21

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Solution

The fourth proportional to 474,574.30, 655,218.18 and 423,499.21 is: 584,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,574.30 : 655,218.18 = 423,499.21 : x
  2. Step 2: Convert to fraction form
    474,574.30/655,218.18 = 423,499.21/x
  3. Step 3: Cross multiply
    474,574.30x = 655,218.18 × 423,499.21
  4. Step 4: Simplify right side
    474,574.30x = 277,484,382,376.74
  5. Step 5: Solve for x
    x = 277,484,382,376.74/474,574.30
  6. Step 6: Final answer
    x = 584,701.66

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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.