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Finding the Fourth Proportional to 525,774.32, 725,602.68 and 305,056.84

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Solution

The fourth proportional to 525,774.32, 725,602.68 and 305,056.84 is: 420,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,774.32 : 725,602.68 = 305,056.84 : x
  2. Step 2: Convert to fraction form
    525,774.32/725,602.68 = 305,056.84/x
  3. Step 3: Cross multiply
    525,774.32x = 725,602.68 × 305,056.84
  4. Step 4: Simplify right side
    525,774.32x = 221,350,060,656.33
  5. Step 5: Solve for x
    x = 221,350,060,656.33/525,774.32
  6. Step 6: Final answer
    x = 420,998.23

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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.