Home / 460,541.81-690,049.00-280,081.40

Finding the Fourth Proportional to 460,541.81, 690,049.00 and 280,081.40

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Solution

The fourth proportional to 460,541.81, 690,049.00 and 280,081.40 is: 419,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,541.81 : 690,049.00 = 280,081.40 : x
  2. Step 2: Convert to fraction form
    460,541.81/690,049.00 = 280,081.40/x
  3. Step 3: Cross multiply
    460,541.81x = 690,049.00 × 280,081.40
  4. Step 4: Simplify right side
    460,541.81x = 193,269,886,888.46
  5. Step 5: Solve for x
    x = 193,269,886,888.46/460,541.81
  6. Step 6: Final answer
    x = 419,657.63

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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.