Home / 403,428.30-556,318.47-267,415.02

Finding the Fourth Proportional to 403,428.30, 556,318.47 and 267,415.02

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Solution

The fourth proportional to 403,428.30, 556,318.47 and 267,415.02 is: 368,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,428.30 : 556,318.47 = 267,415.02 : x
  2. Step 2: Convert to fraction form
    403,428.30/556,318.47 = 267,415.02/x
  3. Step 3: Cross multiply
    403,428.30x = 556,318.47 × 267,415.02
  4. Step 4: Simplify right side
    403,428.30x = 148,767,914,781.42
  5. Step 5: Solve for x
    x = 148,767,914,781.42/403,428.30
  6. Step 6: Final answer
    x = 368,759.24

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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.