Home / 687,547.68-1,031,349.36-327,533.36

Finding the Fourth Proportional to 687,547.68, 1,031,349.36 and 327,533.36

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Solution

The fourth proportional to 687,547.68, 1,031,349.36 and 327,533.36 is: 491,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,547.68 : 1,031,349.36 = 327,533.36 : x
  2. Step 2: Convert to fraction form
    687,547.68/1,031,349.36 = 327,533.36/x
  3. Step 3: Cross multiply
    687,547.68x = 1,031,349.36 × 327,533.36
  4. Step 4: Simplify right side
    687,547.68x = 337,801,321,214.65
  5. Step 5: Solve for x
    x = 337,801,321,214.65/687,547.68
  6. Step 6: Final answer
    x = 491,313.30

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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.