Home / 909,049.70-1,254,480.08-495,586.42

Finding the Fourth Proportional to 909,049.70, 1,254,480.08 and 495,586.42

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Solution

The fourth proportional to 909,049.70, 1,254,480.08 and 495,586.42 is: 683,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,049.70 : 1,254,480.08 = 495,586.42 : x
  2. Step 2: Convert to fraction form
    909,049.70/1,254,480.08 = 495,586.42/x
  3. Step 3: Cross multiply
    909,049.70x = 1,254,480.08 × 495,586.42
  4. Step 4: Simplify right side
    909,049.70x = 621,703,286,194.38
  5. Step 5: Solve for x
    x = 621,703,286,194.38/909,049.70
  6. Step 6: Final answer
    x = 683,904.61

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Double scale
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1.5x scale

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.