Home / 808,550.56-1,212,820.80-209,510.20

Finding the Fourth Proportional to 808,550.56, 1,212,820.80 and 209,510.20

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Solution

The fourth proportional to 808,550.56, 1,212,820.80 and 209,510.20 is: 314,263.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,550.56 : 1,212,820.80 = 209,510.20 : x
  2. Step 2: Convert to fraction form
    808,550.56/1,212,820.80 = 209,510.20/x
  3. Step 3: Cross multiply
    808,550.56x = 1,212,820.80 × 209,510.20
  4. Step 4: Simplify right side
    808,550.56x = 254,098,328,372.16
  5. Step 5: Solve for x
    x = 254,098,328,372.16/808,550.56
  6. Step 6: Final answer
    x = 314,263.99

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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.