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Finding the Fourth Proportional to 893,189.62, 1,339,854.63 and 253,483.21

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Solution

The fourth proportional to 893,189.62, 1,339,854.63 and 253,483.21 is: 380,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,189.62 : 1,339,854.63 = 253,483.21 : x
  2. Step 2: Convert to fraction form
    893,189.62/1,339,854.63 = 253,483.21/x
  3. Step 3: Cross multiply
    893,189.62x = 1,339,854.63 × 253,483.21
  4. Step 4: Simplify right side
    893,189.62x = 339,630,652,545.76
  5. Step 5: Solve for x
    x = 339,630,652,545.76/893,189.62
  6. Step 6: Final answer
    x = 380,244.74

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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.