Home / 818,868.43-1,130,122.52-492,287.17

Finding the Fourth Proportional to 818,868.43, 1,130,122.52 and 492,287.17

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Solution

The fourth proportional to 818,868.43, 1,130,122.52 and 492,287.17 is: 679,406.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,868.43 : 1,130,122.52 = 492,287.17 : x
  2. Step 2: Convert to fraction form
    818,868.43/1,130,122.52 = 492,287.17/x
  3. Step 3: Cross multiply
    818,868.43x = 1,130,122.52 × 492,287.17
  4. Step 4: Simplify right side
    818,868.43x = 556,344,809,012.02
  5. Step 5: Solve for x
    x = 556,344,809,012.02/818,868.43
  6. Step 6: Final answer
    x = 679,406.84

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Double scale
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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.