Home / 1,377,207.70-2,065,811.55-430,674.10

Finding the Fourth Proportional to 1,377,207.70, 2,065,811.55 and 430,674.10

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Solution

The fourth proportional to 1,377,207.70, 2,065,811.55 and 430,674.10 is: 646,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,207.70 : 2,065,811.55 = 430,674.10 : x
  2. Step 2: Convert to fraction form
    1,377,207.70/2,065,811.55 = 430,674.10/x
  3. Step 3: Cross multiply
    1,377,207.70x = 2,065,811.55 × 430,674.10
  4. Step 4: Simplify right side
    1,377,207.70x = 889,691,530,065.86
  5. Step 5: Solve for x
    x = 889,691,530,065.86/1,377,207.70
  6. Step 6: Final answer
    x = 646,011.15

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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.