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Finding the Fourth Proportional to 525,396.43, 725,083.95 and 299,041.93

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Solution

The fourth proportional to 525,396.43, 725,083.95 and 299,041.93 is: 412,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,396.43 : 725,083.95 = 299,041.93 : x
  2. Step 2: Convert to fraction form
    525,396.43/725,083.95 = 299,041.93/x
  3. Step 3: Cross multiply
    525,396.43x = 725,083.95 × 299,041.93
  4. Step 4: Simplify right side
    525,396.43x = 216,830,503,820.02
  5. Step 5: Solve for x
    x = 216,830,503,820.02/525,396.43
  6. Step 6: Final answer
    x = 412,698.85

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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.