Home / 770,220-1,062,821.83-426,001.23

Finding the Fourth Proportional to 770,220, 1,062,821.83 and 426,001.23

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Solution

The fourth proportional to 770,220, 1,062,821.83 and 426,001.23 is: 587,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,220 : 1,062,821.83 = 426,001.23 : x
  2. Step 2: Convert to fraction form
    770,220/1,062,821.83 = 426,001.23/x
  3. Step 3: Cross multiply
    770,220x = 1,062,821.83 × 426,001.23
  4. Step 4: Simplify right side
    770,220x = 452,763,406,850.85
  5. Step 5: Solve for x
    x = 452,763,406,850.85/770,220
  6. Step 6: Final answer
    x = 587,836.47

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1.5x scale

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.