Home / 820,567.10-1,132,439.66-458,061.72

Finding the Fourth Proportional to 820,567.10, 1,132,439.66 and 458,061.72

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Solution

The fourth proportional to 820,567.10, 1,132,439.66 and 458,061.72 is: 632,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,567.10 : 1,132,439.66 = 458,061.72 : x
  2. Step 2: Convert to fraction form
    820,567.10/1,132,439.66 = 458,061.72/x
  3. Step 3: Cross multiply
    820,567.10x = 1,132,439.66 × 458,061.72
  4. Step 4: Simplify right side
    820,567.10x = 518,727,256,165.51
  5. Step 5: Solve for x
    x = 518,727,256,165.51/820,567.10
  6. Step 6: Final answer
    x = 632,157.03

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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.