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Finding the Fourth Proportional to 660,223.48, 911,130.24 and 373,737.64

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Solution

The fourth proportional to 660,223.48, 911,130.24 and 373,737.64 is: 515,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,223.48 : 911,130.24 = 373,737.64 : x
  2. Step 2: Convert to fraction form
    660,223.48/911,130.24 = 373,737.64/x
  3. Step 3: Cross multiply
    660,223.48x = 911,130.24 × 373,737.64
  4. Step 4: Simplify right side
    660,223.48x = 340,523,665,630.23
  5. Step 5: Solve for x
    x = 340,523,665,630.23/660,223.48
  6. Step 6: Final answer
    x = 515,770.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.