Home / 810,345.27-1,216,280.61-411,272.45

Finding the Fourth Proportional to 810,345.27, 1,216,280.61 and 411,272.45

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Solution

The fourth proportional to 810,345.27, 1,216,280.61 and 411,272.45 is: 617,295.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,345.27 : 1,216,280.61 = 411,272.45 : x
  2. Step 2: Convert to fraction form
    810,345.27/1,216,280.61 = 411,272.45/x
  3. Step 3: Cross multiply
    810,345.27x = 1,216,280.61 × 411,272.45
  4. Step 4: Simplify right side
    810,345.27x = 500,222,700,280.79
  5. Step 5: Solve for x
    x = 500,222,700,280.79/810,345.27
  6. Step 6: Final answer
    x = 617,295.76

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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.