Home / 753,138.46-1,129,467.72-247,582.42

Finding the Fourth Proportional to 753,138.46, 1,129,467.72 and 247,582.42

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Solution

The fourth proportional to 753,138.46, 1,129,467.72 and 247,582.42 is: 371,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,138.46 : 1,129,467.72 = 247,582.42 : x
  2. Step 2: Convert to fraction form
    753,138.46/1,129,467.72 = 247,582.42/x
  3. Step 3: Cross multiply
    753,138.46x = 1,129,467.72 × 247,582.42
  4. Step 4: Simplify right side
    753,138.46x = 279,636,351,429.48
  5. Step 5: Solve for x
    x = 279,636,351,429.48/753,138.46
  6. Step 6: Final answer
    x = 371,294.74

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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.