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Finding the Fourth Proportional to 911,745.60, 1,365,650.10 and 754,281.60

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Solution

The fourth proportional to 911,745.60, 1,365,650.10 and 754,281.60 is: 1,129,794.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,745.60 : 1,365,650.10 = 754,281.60 : x
  2. Step 2: Convert to fraction form
    911,745.60/1,365,650.10 = 754,281.60/x
  3. Step 3: Cross multiply
    911,745.60x = 1,365,650.10 × 754,281.60
  4. Step 4: Simplify right side
    911,745.60x = 1,030,084,742,468.16
  5. Step 5: Solve for x
    x = 1,030,084,742,468.16/911,745.60
  6. Step 6: Final answer
    x = 1,129,794.04

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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.