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Finding the Fourth Proportional to 397,726.81, 548,706.15 and 294,612.19

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Solution

The fourth proportional to 397,726.81, 548,706.15 and 294,612.19 is: 406,448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,726.81 : 548,706.15 = 294,612.19 : x
  2. Step 2: Convert to fraction form
    397,726.81/548,706.15 = 294,612.19/x
  3. Step 3: Cross multiply
    397,726.81x = 548,706.15 × 294,612.19
  4. Step 4: Simplify right side
    397,726.81x = 161,655,519,146.20
  5. Step 5: Solve for x
    x = 161,655,519,146.20/397,726.81
  6. Step 6: Final answer
    x = 406,448.64

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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.