Home / 716,266.56-1,071,749.28-432,121.68

Finding the Fourth Proportional to 716,266.56, 1,071,749.28 and 432,121.68

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Solution

The fourth proportional to 716,266.56, 1,071,749.28 and 432,121.68 is: 646,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,266.56 : 1,071,749.28 = 432,121.68 : x
  2. Step 2: Convert to fraction form
    716,266.56/1,071,749.28 = 432,121.68/x
  3. Step 3: Cross multiply
    716,266.56x = 1,071,749.28 × 432,121.68
  4. Step 4: Simplify right side
    716,266.56x = 463,126,099,412.39
  5. Step 5: Solve for x
    x = 463,126,099,412.39/716,266.56
  6. Step 6: Final answer
    x = 646,583.44

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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.