Home / 693,123.27-1,039,239.98-288,595.70

Finding the Fourth Proportional to 693,123.27, 1,039,239.98 and 288,595.70

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Solution

The fourth proportional to 693,123.27, 1,039,239.98 and 288,595.70 is: 432,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,123.27 : 1,039,239.98 = 288,595.70 : x
  2. Step 2: Convert to fraction form
    693,123.27/1,039,239.98 = 288,595.70/x
  3. Step 3: Cross multiply
    693,123.27x = 1,039,239.98 × 288,595.70
  4. Step 4: Simplify right side
    693,123.27x = 299,920,189,496.09
  5. Step 5: Solve for x
    x = 299,920,189,496.09/693,123.27
  6. Step 6: Final answer
    x = 432,708.30

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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.