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Finding the Fourth Proportional to 556,149.08, 767,491.78 and 326,716.04

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Solution

The fourth proportional to 556,149.08, 767,491.78 and 326,716.04 is: 450,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,149.08 : 767,491.78 = 326,716.04 : x
  2. Step 2: Convert to fraction form
    556,149.08/767,491.78 = 326,716.04/x
  3. Step 3: Cross multiply
    556,149.08x = 767,491.78 × 326,716.04
  4. Step 4: Simplify right side
    556,149.08x = 250,751,871,541.84
  5. Step 5: Solve for x
    x = 250,751,871,541.84/556,149.08
  6. Step 6: Final answer
    x = 450,871.68

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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.