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Finding the Fourth Proportional to 893,813.70, 1,340,720.55 and 887,592.90

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Solution

The fourth proportional to 893,813.70, 1,340,720.55 and 887,592.90 is: 1,331,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,813.70 : 1,340,720.55 = 887,592.90 : x
  2. Step 2: Convert to fraction form
    893,813.70/1,340,720.55 = 887,592.90/x
  3. Step 3: Cross multiply
    893,813.70x = 1,340,720.55 × 887,592.90
  4. Step 4: Simplify right side
    893,813.70x = 1,190,014,041,064.10
  5. Step 5: Solve for x
    x = 1,190,014,041,064.10/893,813.70
  6. Step 6: Final answer
    x = 1,331,389.35

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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.