Home / 746,664.71-1,121,118.57-427,177.35

Finding the Fourth Proportional to 746,664.71, 1,121,118.57 and 427,177.35

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Solution

The fourth proportional to 746,664.71, 1,121,118.57 and 427,177.35 is: 641,407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,664.71 : 1,121,118.57 = 427,177.35 : x
  2. Step 2: Convert to fraction form
    746,664.71/1,121,118.57 = 427,177.35/x
  3. Step 3: Cross multiply
    746,664.71x = 1,121,118.57 × 427,177.35
  4. Step 4: Simplify right side
    746,664.71x = 478,916,459,768.39
  5. Step 5: Solve for x
    x = 478,916,459,768.39/746,664.71
  6. Step 6: Final answer
    x = 641,407.66

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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.