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Finding the Fourth Proportional to 654,560.76, 903,288.15 and 368,074.74

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Solution

The fourth proportional to 654,560.76, 903,288.15 and 368,074.74 is: 507,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,560.76 : 903,288.15 = 368,074.74 : x
  2. Step 2: Convert to fraction form
    654,560.76/903,288.15 = 368,074.74/x
  3. Step 3: Cross multiply
    654,560.76x = 903,288.15 × 368,074.74
  4. Step 4: Simplify right side
    654,560.76x = 332,477,550,956.33
  5. Step 5: Solve for x
    x = 332,477,550,956.33/654,560.76
  6. Step 6: Final answer
    x = 507,939.94

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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.