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Finding the Fourth Proportional to 555,230.76, 766,344.93 and 361,296.69

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Solution

The fourth proportional to 555,230.76, 766,344.93 and 361,296.69 is: 498,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,230.76 : 766,344.93 = 361,296.69 : x
  2. Step 2: Convert to fraction form
    555,230.76/766,344.93 = 361,296.69/x
  3. Step 3: Cross multiply
    555,230.76x = 766,344.93 × 361,296.69
  4. Step 4: Simplify right side
    555,230.76x = 276,877,886,607.28
  5. Step 5: Solve for x
    x = 276,877,886,607.28/555,230.76
  6. Step 6: Final answer
    x = 498,671.74

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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.