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Finding the Fourth Proportional to 424,429.26, 585,415.79 and 288,226.77

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Solution

The fourth proportional to 424,429.26, 585,415.79 and 288,226.77 is: 397,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,429.26 : 585,415.79 = 288,226.77 : x
  2. Step 2: Convert to fraction form
    424,429.26/585,415.79 = 288,226.77/x
  3. Step 3: Cross multiply
    424,429.26x = 585,415.79 × 288,226.77
  4. Step 4: Simplify right side
    424,429.26x = 168,732,502,258.70
  5. Step 5: Solve for x
    x = 168,732,502,258.70/424,429.26
  6. Step 6: Final answer
    x = 397,551.53

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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.