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Finding the Fourth Proportional to 992,750.40, 1,489,125.60 and 893,217.60

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Solution

The fourth proportional to 992,750.40, 1,489,125.60 and 893,217.60 is: 1,339,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,750.40 : 1,489,125.60 = 893,217.60 : x
  2. Step 2: Convert to fraction form
    992,750.40/1,489,125.60 = 893,217.60/x
  3. Step 3: Cross multiply
    992,750.40x = 1,489,125.60 × 893,217.60
  4. Step 4: Simplify right side
    992,750.40x = 1,330,113,194,530.56
  5. Step 5: Solve for x
    x = 1,330,113,194,530.56/992,750.40
  6. Step 6: Final answer
    x = 1,339,826.40

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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.