Home / 913,631.73-1,260,796.50-505,724.80

Finding the Fourth Proportional to 913,631.73, 1,260,796.50 and 505,724.80

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Solution

The fourth proportional to 913,631.73, 1,260,796.50 and 505,724.80 is: 697,891.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,631.73 : 1,260,796.50 = 505,724.80 : x
  2. Step 2: Convert to fraction form
    913,631.73/1,260,796.50 = 505,724.80/x
  3. Step 3: Cross multiply
    913,631.73x = 1,260,796.50 × 505,724.80
  4. Step 4: Simplify right side
    913,631.73x = 637,616,057,803.20
  5. Step 5: Solve for x
    x = 637,616,057,803.20/913,631.73
  6. Step 6: Final answer
    x = 697,891.76

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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.