Home / 438,729.20-658,093.80-297,011.60

Finding the Fourth Proportional to 438,729.20, 658,093.80 and 297,011.60

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Solution

The fourth proportional to 438,729.20, 658,093.80 and 297,011.60 is: 445,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,729.20 : 658,093.80 = 297,011.60 : x
  2. Step 2: Convert to fraction form
    438,729.20/658,093.80 = 297,011.60/x
  3. Step 3: Cross multiply
    438,729.20x = 658,093.80 × 297,011.60
  4. Step 4: Simplify right side
    438,729.20x = 195,461,492,488.08
  5. Step 5: Solve for x
    x = 195,461,492,488.08/438,729.20
  6. Step 6: Final answer
    x = 445,517.40

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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.