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Finding the Fourth Proportional to 607,385.28, 911,102.40 and 228,266.40

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Solution

The fourth proportional to 607,385.28, 911,102.40 and 228,266.40 is: 342,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,385.28 : 911,102.40 = 228,266.40 : x
  2. Step 2: Convert to fraction form
    607,385.28/911,102.40 = 228,266.40/x
  3. Step 3: Cross multiply
    607,385.28x = 911,102.40 × 228,266.40
  4. Step 4: Simplify right side
    607,385.28x = 207,974,064,879.36
  5. Step 5: Solve for x
    x = 207,974,064,879.36/607,385.28
  6. Step 6: Final answer
    x = 342,408.80

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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.