Home / 403,036.41-555,875.36-249,988.78

Finding the Fourth Proportional to 403,036.41, 555,875.36 and 249,988.78

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Solution

The fourth proportional to 403,036.41, 555,875.36 and 249,988.78 is: 344,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,036.41 : 555,875.36 = 249,988.78 : x
  2. Step 2: Convert to fraction form
    403,036.41/555,875.36 = 249,988.78/x
  3. Step 3: Cross multiply
    403,036.41x = 555,875.36 × 249,988.78
  4. Step 4: Simplify right side
    403,036.41x = 138,962,603,078.46
  5. Step 5: Solve for x
    x = 138,962,603,078.46/403,036.41
  6. Step 6: Final answer
    x = 344,789.20

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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.