Home / 640,253.95-960,454.73-213,846.36

Finding the Fourth Proportional to 640,253.95, 960,454.73 and 213,846.36

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Solution

The fourth proportional to 640,253.95, 960,454.73 and 213,846.36 is: 320,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,253.95 : 960,454.73 = 213,846.36 : x
  2. Step 2: Convert to fraction form
    640,253.95/960,454.73 = 213,846.36/x
  3. Step 3: Cross multiply
    640,253.95x = 960,454.73 × 213,846.36
  4. Step 4: Simplify right side
    640,253.95x = 205,389,744,888.19
  5. Step 5: Solve for x
    x = 205,389,744,888.19/640,253.95
  6. Step 6: Final answer
    x = 320,794.19

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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.