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Finding the Fourth Proportional to 887,374.16, 1,224,549 and 505,455.44

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Solution

The fourth proportional to 887,374.16, 1,224,549 and 505,455.44 is: 697,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,374.16 : 1,224,549 = 505,455.44 : x
  2. Step 2: Convert to fraction form
    887,374.16/1,224,549 = 505,455.44/x
  3. Step 3: Cross multiply
    887,374.16x = 1,224,549 × 505,455.44
  4. Step 4: Simplify right side
    887,374.16x = 618,954,953,596.56
  5. Step 5: Solve for x
    x = 618,954,953,596.56/887,374.16
  6. Step 6: Final answer
    x = 697,512.93

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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.