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Finding the Fourth Proportional to 525,906.20, 788,859.30 and 496,875.80

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Solution

The fourth proportional to 525,906.20, 788,859.30 and 496,875.80 is: 745,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,906.20 : 788,859.30 = 496,875.80 : x
  2. Step 2: Convert to fraction form
    525,906.20/788,859.30 = 496,875.80/x
  3. Step 3: Cross multiply
    525,906.20x = 788,859.30 × 496,875.80
  4. Step 4: Simplify right side
    525,906.20x = 391,965,095,774.94
  5. Step 5: Solve for x
    x = 391,965,095,774.94/525,906.20
  6. Step 6: Final answer
    x = 745,313.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.