Home / 762,642.96-1,052,447.61-423,111.21

Finding the Fourth Proportional to 762,642.96, 1,052,447.61 and 423,111.21

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Solution

The fourth proportional to 762,642.96, 1,052,447.61 and 423,111.21 is: 583,893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,642.96 : 1,052,447.61 = 423,111.21 : x
  2. Step 2: Convert to fraction form
    762,642.96/1,052,447.61 = 423,111.21/x
  3. Step 3: Cross multiply
    762,642.96x = 1,052,447.61 × 423,111.21
  4. Step 4: Simplify right side
    762,642.96x = 445,302,381,728.71
  5. Step 5: Solve for x
    x = 445,302,381,728.71/762,642.96
  6. Step 6: Final answer
    x = 583,893.65

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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.