Home / 403,534.40-556,829.01-231,443.42

Finding the Fourth Proportional to 403,534.40, 556,829.01 and 231,443.42

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Solution

The fourth proportional to 403,534.40, 556,829.01 and 231,443.42 is: 319,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,534.40 : 556,829.01 = 231,443.42 : x
  2. Step 2: Convert to fraction form
    403,534.40/556,829.01 = 231,443.42/x
  3. Step 3: Cross multiply
    403,534.40x = 556,829.01 × 231,443.42
  4. Step 4: Simplify right side
    403,534.40x = 128,874,407,645.47
  5. Step 5: Solve for x
    x = 128,874,407,645.47/403,534.40
  6. Step 6: Final answer
    x = 319,364.12

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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.