Home / 811,515.92-1,119,924.90-448,933.52

Finding the Fourth Proportional to 811,515.92, 1,119,924.90 and 448,933.52

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Solution

The fourth proportional to 811,515.92, 1,119,924.90 and 448,933.52 is: 619,546.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,515.92 : 1,119,924.90 = 448,933.52 : x
  2. Step 2: Convert to fraction form
    811,515.92/1,119,924.90 = 448,933.52/x
  3. Step 3: Cross multiply
    811,515.92x = 1,119,924.90 × 448,933.52
  4. Step 4: Simplify right side
    811,515.92x = 502,771,827,492.65
  5. Step 5: Solve for x
    x = 502,771,827,492.65/811,515.92
  6. Step 6: Final answer
    x = 619,546.47

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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.