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Finding the Fourth Proportional to 384,928.60, 577,392.90 and 266,733.40

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Solution

The fourth proportional to 384,928.60, 577,392.90 and 266,733.40 is: 400,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,928.60 : 577,392.90 = 266,733.40 : x
  2. Step 2: Convert to fraction form
    384,928.60/577,392.90 = 266,733.40/x
  3. Step 3: Cross multiply
    384,928.60x = 577,392.90 × 266,733.40
  4. Step 4: Simplify right side
    384,928.60x = 154,009,971,352.86
  5. Step 5: Solve for x
    x = 154,009,971,352.86/384,928.60
  6. Step 6: Final answer
    x = 400,100.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.