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Finding the Fourth Proportional to 284,574.77, 426,918.20 and 84,890.73

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Solution

The fourth proportional to 284,574.77, 426,918.20 and 84,890.73 is: 127,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,574.77 : 426,918.20 = 84,890.73 : x
  2. Step 2: Convert to fraction form
    284,574.77/426,918.20 = 84,890.73/x
  3. Step 3: Cross multiply
    284,574.77x = 426,918.20 × 84,890.73
  4. Step 4: Simplify right side
    284,574.77x = 36,241,397,860.51
  5. Step 5: Solve for x
    x = 36,241,397,860.51/284,574.77
  6. Step 6: Final answer
    x = 127,352.82

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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.