Home / 887,878.43-1,225,242.40-561,367.19

Finding the Fourth Proportional to 887,878.43, 1,225,242.40 and 561,367.19

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Solution

The fourth proportional to 887,878.43, 1,225,242.40 and 561,367.19 is: 774,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,878.43 : 1,225,242.40 = 561,367.19 : x
  2. Step 2: Convert to fraction form
    887,878.43/1,225,242.40 = 561,367.19/x
  3. Step 3: Cross multiply
    887,878.43x = 1,225,242.40 × 561,367.19
  4. Step 4: Simplify right side
    887,878.43x = 687,810,885,060.84
  5. Step 5: Solve for x
    x = 687,810,885,060.84/887,878.43
  6. Step 6: Final answer
    x = 774,667.86

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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.