Home / 1,225,364.22-1,690,987.59-688,820.22

Finding the Fourth Proportional to 1,225,364.22, 1,690,987.59 and 688,820.22

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Solution

The fourth proportional to 1,225,364.22, 1,690,987.59 and 688,820.22 is: 950,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,364.22 : 1,690,987.59 = 688,820.22 : x
  2. Step 2: Convert to fraction form
    1,225,364.22/1,690,987.59 = 688,820.22/x
  3. Step 3: Cross multiply
    1,225,364.22x = 1,690,987.59 × 688,820.22
  4. Step 4: Simplify right side
    1,225,364.22x = 1,164,786,443,761.07
  5. Step 5: Solve for x
    x = 1,164,786,443,761.07/1,225,364.22
  6. Step 6: Final answer
    x = 950,563.45

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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.