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Finding the Fourth Proportional to 533,385.70, 736,070.40 and 300,794.15

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Solution

The fourth proportional to 533,385.70, 736,070.40 and 300,794.15 is: 415,094.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,385.70 : 736,070.40 = 300,794.15 : x
  2. Step 2: Convert to fraction form
    533,385.70/736,070.40 = 300,794.15/x
  3. Step 3: Cross multiply
    533,385.70x = 736,070.40 × 300,794.15
  4. Step 4: Simplify right side
    533,385.70x = 221,405,670,308.16
  5. Step 5: Solve for x
    x = 221,405,670,308.16/533,385.70
  6. Step 6: Final answer
    x = 415,094.87

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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.