Home / 887,159.79-1,224,292.32-505,188.09

Finding the Fourth Proportional to 887,159.79, 1,224,292.32 and 505,188.09

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Solution

The fourth proportional to 887,159.79, 1,224,292.32 and 505,188.09 is: 697,166.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,159.79 : 1,224,292.32 = 505,188.09 : x
  2. Step 2: Convert to fraction form
    887,159.79/1,224,292.32 = 505,188.09/x
  3. Step 3: Cross multiply
    887,159.79x = 1,224,292.32 × 505,188.09
  4. Step 4: Simplify right side
    887,159.79x = 618,497,898,742.47
  5. Step 5: Solve for x
    x = 618,497,898,742.47/887,159.79
  6. Step 6: Final answer
    x = 697,166.29

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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.