Home / 887,549.90-1,224,815.93-505,641.38

Finding the Fourth Proportional to 887,549.90, 1,224,815.93 and 505,641.38

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Solution

The fourth proportional to 887,549.90, 1,224,815.93 and 505,641.38 is: 697,783.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,549.90 : 1,224,815.93 = 505,641.38 : x
  2. Step 2: Convert to fraction form
    887,549.90/1,224,815.93 = 505,641.38/x
  3. Step 3: Cross multiply
    887,549.90x = 1,224,815.93 × 505,641.38
  4. Step 4: Simplify right side
    887,549.90x = 619,317,608,438.90
  5. Step 5: Solve for x
    x = 619,317,608,438.90/887,549.90
  6. Step 6: Final answer
    x = 697,783.43

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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.