Home / 326,603.04-489,935.37-126,938.72

Finding the Fourth Proportional to 326,603.04, 489,935.37 and 126,938.72

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Solution

The fourth proportional to 326,603.04, 489,935.37 and 126,938.72 is: 190,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,603.04 : 489,935.37 = 126,938.72 : x
  2. Step 2: Convert to fraction form
    326,603.04/489,935.37 = 126,938.72/x
  3. Step 3: Cross multiply
    326,603.04x = 489,935.37 × 126,938.72
  4. Step 4: Simplify right side
    326,603.04x = 62,191,766,300.85
  5. Step 5: Solve for x
    x = 62,191,766,300.85/326,603.04
  6. Step 6: Final answer
    x = 190,420.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.