Home / 788,686.80-1,183,030.20-505,251.60

Finding the Fourth Proportional to 788,686.80, 1,183,030.20 and 505,251.60

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Solution

The fourth proportional to 788,686.80, 1,183,030.20 and 505,251.60 is: 757,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,686.80 : 1,183,030.20 = 505,251.60 : x
  2. Step 2: Convert to fraction form
    788,686.80/1,183,030.20 = 505,251.60/x
  3. Step 3: Cross multiply
    788,686.80x = 1,183,030.20 × 505,251.60
  4. Step 4: Simplify right side
    788,686.80x = 597,727,901,398.32
  5. Step 5: Solve for x
    x = 597,727,901,398.32/788,686.80
  6. Step 6: Final answer
    x = 757,877.40

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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.