Home / 687,425.59-1,031,252.60-288,096.40

Finding the Fourth Proportional to 687,425.59, 1,031,252.60 and 288,096.40

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Solution

The fourth proportional to 687,425.59, 1,031,252.60 and 288,096.40 is: 432,192.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,425.59 : 1,031,252.60 = 288,096.40 : x
  2. Step 2: Convert to fraction form
    687,425.59/1,031,252.60 = 288,096.40/x
  3. Step 3: Cross multiply
    687,425.59x = 1,031,252.60 × 288,096.40
  4. Step 4: Simplify right side
    687,425.59x = 297,100,161,550.64
  5. Step 5: Solve for x
    x = 297,100,161,550.64/687,425.59
  6. Step 6: Final answer
    x = 432,192.47

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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.