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Finding the Fourth Proportional to 745,361.44, 1,028,606.16 and 427,348

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Solution

The fourth proportional to 745,361.44, 1,028,606.16 and 427,348 is: 589,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,361.44 : 1,028,606.16 = 427,348 : x
  2. Step 2: Convert to fraction form
    745,361.44/1,028,606.16 = 427,348/x
  3. Step 3: Cross multiply
    745,361.44x = 1,028,606.16 × 427,348
  4. Step 4: Simplify right side
    745,361.44x = 439,572,785,263.68
  5. Step 5: Solve for x
    x = 439,572,785,263.68/745,361.44
  6. Step 6: Final answer
    x = 589,744.47

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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.