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Finding the Fourth Proportional to 893,817.60, 1,340,337.60 and 294,547.20

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Solution

The fourth proportional to 893,817.60, 1,340,337.60 and 294,547.20 is: 441,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,817.60 : 1,340,337.60 = 294,547.20 : x
  2. Step 2: Convert to fraction form
    893,817.60/1,340,337.60 = 294,547.20/x
  3. Step 3: Cross multiply
    893,817.60x = 1,340,337.60 × 294,547.20
  4. Step 4: Simplify right side
    893,817.60x = 394,792,687,134.72
  5. Step 5: Solve for x
    x = 394,792,687,134.72/893,817.60
  6. Step 6: Final answer
    x = 441,692.68

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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.