Home / 813,047.72-1,122,041.79-450,471.47

Finding the Fourth Proportional to 813,047.72, 1,122,041.79 and 450,471.47

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Solution

The fourth proportional to 813,047.72, 1,122,041.79 and 450,471.47 is: 621,670.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,047.72 : 1,122,041.79 = 450,471.47 : x
  2. Step 2: Convert to fraction form
    813,047.72/1,122,041.79 = 450,471.47/x
  3. Step 3: Cross multiply
    813,047.72x = 1,122,041.79 × 450,471.47
  4. Step 4: Simplify right side
    813,047.72x = 505,447,808,932.52
  5. Step 5: Solve for x
    x = 505,447,808,932.52/813,047.72
  6. Step 6: Final answer
    x = 621,670.54

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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.