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Finding the Fourth Proportional to 607,511.20, 911,266.80 and 341,280.40

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Solution

The fourth proportional to 607,511.20, 911,266.80 and 341,280.40 is: 511,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,511.20 : 911,266.80 = 341,280.40 : x
  2. Step 2: Convert to fraction form
    607,511.20/911,266.80 = 341,280.40/x
  3. Step 3: Cross multiply
    607,511.20x = 911,266.80 × 341,280.40
  4. Step 4: Simplify right side
    607,511.20x = 310,997,498,010.72
  5. Step 5: Solve for x
    x = 310,997,498,010.72/607,511.20
  6. Step 6: Final answer
    x = 511,920.60

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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.