Home / 813,845.28-1,221,041.42-570,939.53

Finding the Fourth Proportional to 813,845.28, 1,221,041.42 and 570,939.53

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Solution

The fourth proportional to 813,845.28, 1,221,041.42 and 570,939.53 is: 856,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,845.28 : 1,221,041.42 = 570,939.53 : x
  2. Step 2: Convert to fraction form
    813,845.28/1,221,041.42 = 570,939.53/x
  3. Step 3: Cross multiply
    813,845.28x = 1,221,041.42 × 570,939.53
  4. Step 4: Simplify right side
    813,845.28x = 697,140,805,485.43
  5. Step 5: Solve for x
    x = 697,140,805,485.43/813,845.28
  6. Step 6: Final answer
    x = 856,601.15

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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.