Home / 863,125.80-1,294,688.70-223,428.30

Finding the Fourth Proportional to 863,125.80, 1,294,688.70 and 223,428.30

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Solution

The fourth proportional to 863,125.80, 1,294,688.70 and 223,428.30 is: 335,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,125.80 : 1,294,688.70 = 223,428.30 : x
  2. Step 2: Convert to fraction form
    863,125.80/1,294,688.70 = 223,428.30/x
  3. Step 3: Cross multiply
    863,125.80x = 1,294,688.70 × 223,428.30
  4. Step 4: Simplify right side
    863,125.80x = 289,270,095,270.21
  5. Step 5: Solve for x
    x = 289,270,095,270.21/863,125.80
  6. Step 6: Final answer
    x = 335,142.45

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Similar ratio
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1.5x scale

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.