Home / 638,531.02-881,178.51-352,061.38

Finding the Fourth Proportional to 638,531.02, 881,178.51 and 352,061.38

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Solution

The fourth proportional to 638,531.02, 881,178.51 and 352,061.38 is: 485,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,531.02 : 881,178.51 = 352,061.38 : x
  2. Step 2: Convert to fraction form
    638,531.02/881,178.51 = 352,061.38/x
  3. Step 3: Cross multiply
    638,531.02x = 881,178.51 × 352,061.38
  4. Step 4: Simplify right side
    638,531.02x = 310,228,922,256.94
  5. Step 5: Solve for x
    x = 310,228,922,256.94/638,531.02
  6. Step 6: Final answer
    x = 485,847.85

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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.