Home / 770,775.28-1,063,795.88-528,858.24

Finding the Fourth Proportional to 770,775.28, 1,063,795.88 and 528,858.24

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Solution

The fourth proportional to 770,775.28, 1,063,795.88 and 528,858.24 is: 729,910.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,775.28 : 1,063,795.88 = 528,858.24 : x
  2. Step 2: Convert to fraction form
    770,775.28/1,063,795.88 = 528,858.24/x
  3. Step 3: Cross multiply
    770,775.28x = 1,063,795.88 × 528,858.24
  4. Step 4: Simplify right side
    770,775.28x = 562,597,216,816.05
  5. Step 5: Solve for x
    x = 562,597,216,816.05/770,775.28
  6. Step 6: Final answer
    x = 729,910.82

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Double scale
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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.