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Finding the Fourth Proportional to 525,670.40, 725,500.32 and 299,336.96

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Solution

The fourth proportional to 525,670.40, 725,500.32 and 299,336.96 is: 413,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,670.40 : 725,500.32 = 299,336.96 : x
  2. Step 2: Convert to fraction form
    525,670.40/725,500.32 = 299,336.96/x
  3. Step 3: Cross multiply
    525,670.40x = 725,500.32 × 299,336.96
  4. Step 4: Simplify right side
    525,670.40x = 217,169,060,267.83
  5. Step 5: Solve for x
    x = 217,169,060,267.83/525,670.40
  6. Step 6: Final answer
    x = 413,127.81

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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.