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Finding the Fourth Proportional to 525,773.60, 788,660.40 and 288,994.40

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Solution

The fourth proportional to 525,773.60, 788,660.40 and 288,994.40 is: 433,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,773.60 : 788,660.40 = 288,994.40 : x
  2. Step 2: Convert to fraction form
    525,773.60/788,660.40 = 288,994.40/x
  3. Step 3: Cross multiply
    525,773.60x = 788,660.40 × 288,994.40
  4. Step 4: Simplify right side
    525,773.60x = 227,918,439,101.76
  5. Step 5: Solve for x
    x = 227,918,439,101.76/525,773.60
  6. Step 6: Final answer
    x = 433,491.60

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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.