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Finding the Fourth Proportional to 654,554.76, 903,279.90 and 368,068.71

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Solution

The fourth proportional to 654,554.76, 903,279.90 and 368,068.71 is: 507,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,554.76 : 903,279.90 = 368,068.71 : x
  2. Step 2: Convert to fraction form
    654,554.76/903,279.90 = 368,068.71/x
  3. Step 3: Cross multiply
    654,554.76x = 903,279.90 × 368,068.71
  4. Step 4: Simplify right side
    654,554.76x = 332,469,067,561.93
  5. Step 5: Solve for x
    x = 332,469,067,561.93/654,554.76
  6. Step 6: Final answer
    x = 507,931.63

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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.