Home / 1,478,546.40-2,217,301.20-768,338.40

Finding the Fourth Proportional to 1,478,546.40, 2,217,301.20 and 768,338.40

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Solution

The fourth proportional to 1,478,546.40, 2,217,301.20 and 768,338.40 is: 1,152,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,546.40 : 2,217,301.20 = 768,338.40 : x
  2. Step 2: Convert to fraction form
    1,478,546.40/2,217,301.20 = 768,338.40/x
  3. Step 3: Cross multiply
    1,478,546.40x = 2,217,301.20 × 768,338.40
  4. Step 4: Simplify right side
    1,478,546.40x = 1,703,637,656,326.08
  5. Step 5: Solve for x
    x = 1,703,637,656,326.08/1,478,546.40
  6. Step 6: Final answer
    x = 1,152,238.21

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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.