Home / 788,689.80-1,183,034.70-505,254.60

Finding the Fourth Proportional to 788,689.80, 1,183,034.70 and 505,254.60

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Solution

The fourth proportional to 788,689.80, 1,183,034.70 and 505,254.60 is: 757,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,689.80 : 1,183,034.70 = 505,254.60 : x
  2. Step 2: Convert to fraction form
    788,689.80/1,183,034.70 = 505,254.60/x
  3. Step 3: Cross multiply
    788,689.80x = 1,183,034.70 × 505,254.60
  4. Step 4: Simplify right side
    788,689.80x = 597,733,724,134.62
  5. Step 5: Solve for x
    x = 597,733,724,134.62/788,689.80
  6. Step 6: Final answer
    x = 757,881.90

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Half scale
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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.