Home / 1,313,608.70-1,971,191.28-555,408.74

Finding the Fourth Proportional to 1,313,608.70, 1,971,191.28 and 555,408.74

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Solution

The fourth proportional to 1,313,608.70, 1,971,191.28 and 555,408.74 is: 833,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,608.70 : 1,971,191.28 = 555,408.74 : x
  2. Step 2: Convert to fraction form
    1,313,608.70/1,971,191.28 = 555,408.74/x
  3. Step 3: Cross multiply
    1,313,608.70x = 1,971,191.28 × 555,408.74
  4. Step 4: Simplify right side
    1,313,608.70x = 1,094,816,865,123.79
  5. Step 5: Solve for x
    x = 1,094,816,865,123.79/1,313,608.70
  6. Step 6: Final answer
    x = 833,442.15

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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.