Home / 347,736.40-521,604.60-288,687.40

Finding the Fourth Proportional to 347,736.40, 521,604.60 and 288,687.40

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Solution

The fourth proportional to 347,736.40, 521,604.60 and 288,687.40 is: 433,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,736.40 : 521,604.60 = 288,687.40 : x
  2. Step 2: Convert to fraction form
    347,736.40/521,604.60 = 288,687.40/x
  3. Step 3: Cross multiply
    347,736.40x = 521,604.60 × 288,687.40
  4. Step 4: Simplify right side
    347,736.40x = 150,580,675,802.04
  5. Step 5: Solve for x
    x = 150,580,675,802.04/347,736.40
  6. Step 6: Final answer
    x = 433,031.10

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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.