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Finding the Fourth Proportional to 893,800.80, 1,340,701.20 and 294,854.40

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Solution

The fourth proportional to 893,800.80, 1,340,701.20 and 294,854.40 is: 442,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,800.80 : 1,340,701.20 = 294,854.40 : x
  2. Step 2: Convert to fraction form
    893,800.80/1,340,701.20 = 294,854.40/x
  3. Step 3: Cross multiply
    893,800.80x = 1,340,701.20 × 294,854.40
  4. Step 4: Simplify right side
    893,800.80x = 395,311,647,905.28
  5. Step 5: Solve for x
    x = 395,311,647,905.28/893,800.80
  6. Step 6: Final answer
    x = 442,281.60

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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.