Home / 1,109,664.42-1,531,337.50-770,329.50

Finding the Fourth Proportional to 1,109,664.42, 1,531,337.50 and 770,329.50

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Solution

The fourth proportional to 1,109,664.42, 1,531,337.50 and 770,329.50 is: 1,063,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,664.42 : 1,531,337.50 = 770,329.50 : x
  2. Step 2: Convert to fraction form
    1,109,664.42/1,531,337.50 = 770,329.50/x
  3. Step 3: Cross multiply
    1,109,664.42x = 1,531,337.50 × 770,329.50
  4. Step 4: Simplify right side
    1,109,664.42x = 1,179,634,450,706.25
  5. Step 5: Solve for x
    x = 1,179,634,450,706.25/1,109,664.42
  6. Step 6: Final answer
    x = 1,063,055.13

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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.