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Finding the Fourth Proportional to 598,860.60, 898,290.90 and 299,387.40

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Solution

The fourth proportional to 598,860.60, 898,290.90 and 299,387.40 is: 449,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,860.60 : 898,290.90 = 299,387.40 : x
  2. Step 2: Convert to fraction form
    598,860.60/898,290.90 = 299,387.40/x
  3. Step 3: Cross multiply
    598,860.60x = 898,290.90 × 299,387.40
  4. Step 4: Simplify right side
    598,860.60x = 268,936,976,994.66
  5. Step 5: Solve for x
    x = 268,936,976,994.66/598,860.60
  6. Step 6: Final answer
    x = 449,081.10

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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.