Home / 820,576.85-1,132,453.10-458,071.47

Finding the Fourth Proportional to 820,576.85, 1,132,453.10 and 458,071.47

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Solution

The fourth proportional to 820,576.85, 1,132,453.10 and 458,071.47 is: 632,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,576.85 : 1,132,453.10 = 458,071.47 : x
  2. Step 2: Convert to fraction form
    820,576.85/1,132,453.10 = 458,071.47/x
  3. Step 3: Cross multiply
    820,576.85x = 1,132,453.10 × 458,071.47
  4. Step 4: Simplify right side
    820,576.85x = 518,744,457,368.24
  5. Step 5: Solve for x
    x = 518,744,457,368.24/820,576.85
  6. Step 6: Final answer
    x = 632,170.48

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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.