Home / 587,616.47-811,158.93-396,888.20

Finding the Fourth Proportional to 587,616.47, 811,158.93 and 396,888.20

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Solution

The fourth proportional to 587,616.47, 811,158.93 and 396,888.20 is: 547,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,616.47 : 811,158.93 = 396,888.20 : x
  2. Step 2: Convert to fraction form
    587,616.47/811,158.93 = 396,888.20/x
  3. Step 3: Cross multiply
    587,616.47x = 811,158.93 × 396,888.20
  4. Step 4: Simplify right side
    587,616.47x = 321,939,403,585.83
  5. Step 5: Solve for x
    x = 321,939,403,585.83/587,616.47
  6. Step 6: Final answer
    x = 547,873.35

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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.