Home / 913,631.09-1,260,822.02-505,770.65

Finding the Fourth Proportional to 913,631.09, 1,260,822.02 and 505,770.65

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Solution

The fourth proportional to 913,631.09, 1,260,822.02 and 505,770.65 is: 697,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,631.09 : 1,260,822.02 = 505,770.65 : x
  2. Step 2: Convert to fraction form
    913,631.09/1,260,822.02 = 505,770.65/x
  3. Step 3: Cross multiply
    913,631.09x = 1,260,822.02 × 505,770.65
  4. Step 4: Simplify right side
    913,631.09x = 637,686,763,756.75
  5. Step 5: Solve for x
    x = 637,686,763,756.75/913,631.09
  6. Step 6: Final answer
    x = 697,969.64

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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.