Home / 917,367.35-1,375,505.87-348,790.05

Finding the Fourth Proportional to 917,367.35, 1,375,505.87 and 348,790.05

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Solution

The fourth proportional to 917,367.35, 1,375,505.87 and 348,790.05 is: 522,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,367.35 : 1,375,505.87 = 348,790.05 : x
  2. Step 2: Convert to fraction form
    917,367.35/1,375,505.87 = 348,790.05/x
  3. Step 3: Cross multiply
    917,367.35x = 1,375,505.87 × 348,790.05
  4. Step 4: Simplify right side
    917,367.35x = 479,762,759,428.64
  5. Step 5: Solve for x
    x = 479,762,759,428.64/917,367.35
  6. Step 6: Final answer
    x = 522,977.80

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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.