Home / 808,048.81-1,115,208.30-463,992.40

Finding the Fourth Proportional to 808,048.81, 1,115,208.30 and 463,992.40

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Solution

The fourth proportional to 808,048.81, 1,115,208.30 and 463,992.40 is: 640,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,048.81 : 1,115,208.30 = 463,992.40 : x
  2. Step 2: Convert to fraction form
    808,048.81/1,115,208.30 = 463,992.40/x
  3. Step 3: Cross multiply
    808,048.81x = 1,115,208.30 × 463,992.40
  4. Step 4: Simplify right side
    808,048.81x = 517,448,175,616.92
  5. Step 5: Solve for x
    x = 517,448,175,616.92/808,048.81
  6. Step 6: Final answer
    x = 640,367.47

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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.