Home / 871,957.30-1,203,331.53-489,976.42

Finding the Fourth Proportional to 871,957.30, 1,203,331.53 and 489,976.42

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Solution

The fourth proportional to 871,957.30, 1,203,331.53 and 489,976.42 is: 676,184.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,957.30 : 1,203,331.53 = 489,976.42 : x
  2. Step 2: Convert to fraction form
    871,957.30/1,203,331.53 = 489,976.42/x
  3. Step 3: Cross multiply
    871,957.30x = 1,203,331.53 × 489,976.42
  4. Step 4: Simplify right side
    871,957.30x = 589,604,075,142.52
  5. Step 5: Solve for x
    x = 589,604,075,142.52/871,957.30
  6. Step 6: Final answer
    x = 676,184.57

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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.