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Finding the Fourth Proportional to 543,444.80, 814,429.92 and 306,670.40

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Solution

The fourth proportional to 543,444.80, 814,429.92 and 306,670.40 is: 459,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,444.80 : 814,429.92 = 306,670.40 : x
  2. Step 2: Convert to fraction form
    543,444.80/814,429.92 = 306,670.40/x
  3. Step 3: Cross multiply
    543,444.80x = 814,429.92 × 306,670.40
  4. Step 4: Simplify right side
    543,444.80x = 249,761,549,338.37
  5. Step 5: Solve for x
    x = 249,761,549,338.37/543,444.80
  6. Step 6: Final answer
    x = 459,589.55

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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.