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Finding the Fourth Proportional to 654,946.40, 903,825.90 and 364,551.71

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Solution

The fourth proportional to 654,946.40, 903,825.90 and 364,551.71 is: 503,081.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,946.40 : 903,825.90 = 364,551.71 : x
  2. Step 2: Convert to fraction form
    654,946.40/903,825.90 = 364,551.71/x
  3. Step 3: Cross multiply
    654,946.40x = 903,825.90 × 364,551.71
  4. Step 4: Simplify right side
    654,946.40x = 329,491,272,868.16
  5. Step 5: Solve for x
    x = 329,491,272,868.16/654,946.40
  6. Step 6: Final answer
    x = 503,081.28

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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.