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Finding the Fourth Proportional to 460,143.82, 634,900.86 and 290,279.50

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Solution

The fourth proportional to 460,143.82, 634,900.86 and 290,279.50 is: 400,524.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,143.82 : 634,900.86 = 290,279.50 : x
  2. Step 2: Convert to fraction form
    460,143.82/634,900.86 = 290,279.50/x
  3. Step 3: Cross multiply
    460,143.82x = 634,900.86 × 290,279.50
  4. Step 4: Simplify right side
    460,143.82x = 184,298,704,190.37
  5. Step 5: Solve for x
    x = 184,298,704,190.37/460,143.82
  6. Step 6: Final answer
    x = 400,524.13

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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.