Home / 715,550.04-987,470.58-409,625.19

Finding the Fourth Proportional to 715,550.04, 987,470.58 and 409,625.19

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Solution

The fourth proportional to 715,550.04, 987,470.58 and 409,625.19 is: 565,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,550.04 : 987,470.58 = 409,625.19 : x
  2. Step 2: Convert to fraction form
    715,550.04/987,470.58 = 409,625.19/x
  3. Step 3: Cross multiply
    715,550.04x = 987,470.58 × 409,625.19
  4. Step 4: Simplify right side
    715,550.04x = 404,492,823,951.91
  5. Step 5: Solve for x
    x = 404,492,823,951.91/715,550.04
  6. Step 6: Final answer
    x = 565,289.36

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1.5x scale

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.