Home / 780,125.77-1,170,228.75-219,204.01

Finding the Fourth Proportional to 780,125.77, 1,170,228.75 and 219,204.01

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Solution

The fourth proportional to 780,125.77, 1,170,228.75 and 219,204.01 is: 328,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,125.77 : 1,170,228.75 = 219,204.01 : x
  2. Step 2: Convert to fraction form
    780,125.77/1,170,228.75 = 219,204.01/x
  3. Step 3: Cross multiply
    780,125.77x = 1,170,228.75 × 219,204.01
  4. Step 4: Simplify right side
    780,125.77x = 256,518,834,617.29
  5. Step 5: Solve for x
    x = 256,518,834,617.29/780,125.77
  6. Step 6: Final answer
    x = 328,817.28

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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.