Home / 613,012.01-845,943.31-354,899.84

Finding the Fourth Proportional to 613,012.01, 845,943.31 and 354,899.84

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Solution

The fourth proportional to 613,012.01, 845,943.31 and 354,899.84 is: 489,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,012.01 : 845,943.31 = 354,899.84 : x
  2. Step 2: Convert to fraction form
    613,012.01/845,943.31 = 354,899.84/x
  3. Step 3: Cross multiply
    613,012.01x = 845,943.31 × 354,899.84
  4. Step 4: Simplify right side
    613,012.01x = 300,225,141,581.98
  5. Step 5: Solve for x
    x = 300,225,141,581.98/613,012.01
  6. Step 6: Final answer
    x = 489,754.10

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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.