Home / 1,126,929.89-1,555,084.95-668,020.75

Finding the Fourth Proportional to 1,126,929.89, 1,555,084.95 and 668,020.75

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Solution

The fourth proportional to 1,126,929.89, 1,555,084.95 and 668,020.75 is: 921,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,929.89 : 1,555,084.95 = 668,020.75 : x
  2. Step 2: Convert to fraction form
    1,126,929.89/1,555,084.95 = 668,020.75/x
  3. Step 3: Cross multiply
    1,126,929.89x = 1,555,084.95 × 668,020.75
  4. Step 4: Simplify right side
    1,126,929.89x = 1,038,829,010,725.00
  5. Step 5: Solve for x
    x = 1,038,829,010,725.00/1,126,929.89
  6. Step 6: Final answer
    x = 921,822.22

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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.