Home / 770,219-1,062,820.45-426,000.23

Finding the Fourth Proportional to 770,219, 1,062,820.45 and 426,000.23

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Solution

The fourth proportional to 770,219, 1,062,820.45 and 426,000.23 is: 587,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,219 : 1,062,820.45 = 426,000.23 : x
  2. Step 2: Convert to fraction form
    770,219/1,062,820.45 = 426,000.23/x
  3. Step 3: Cross multiply
    770,219x = 1,062,820.45 × 426,000.23
  4. Step 4: Simplify right side
    770,219x = 452,761,756,148.70
  5. Step 5: Solve for x
    x = 452,761,756,148.70/770,219
  6. Step 6: Final answer
    x = 587,835.09

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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.