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Finding the Fourth Proportional to 660,265.92, 911,223.36 and 373,836.48

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Solution

The fourth proportional to 660,265.92, 911,223.36 and 373,836.48 is: 515,926.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,265.92 : 911,223.36 = 373,836.48 : x
  2. Step 2: Convert to fraction form
    660,265.92/911,223.36 = 373,836.48/x
  3. Step 3: Cross multiply
    660,265.92x = 911,223.36 × 373,836.48
  4. Step 4: Simplify right side
    660,265.92x = 340,648,533,396.17
  5. Step 5: Solve for x
    x = 340,648,533,396.17/660,265.92
  6. Step 6: Final answer
    x = 515,926.27

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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.