Home / 1,464,855.20-2,021,478.20-811,479.15

Finding the Fourth Proportional to 1,464,855.20, 2,021,478.20 and 811,479.15

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Solution

The fourth proportional to 1,464,855.20, 2,021,478.20 and 811,479.15 is: 1,119,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464,855.20 : 2,021,478.20 = 811,479.15 : x
  2. Step 2: Convert to fraction form
    1,464,855.20/2,021,478.20 = 811,479.15/x
  3. Step 3: Cross multiply
    1,464,855.20x = 2,021,478.20 × 811,479.15
  4. Step 4: Simplify right side
    1,464,855.20x = 1,640,387,405,927.68
  5. Step 5: Solve for x
    x = 1,640,387,405,927.68/1,464,855.20
  6. Step 6: Final answer
    x = 1,119,829.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.