Home / 450,413.52-621,579.72-249,212.88

Finding the Fourth Proportional to 450,413.52, 621,579.72 and 249,212.88

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Solution

The fourth proportional to 450,413.52, 621,579.72 and 249,212.88 is: 343,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,413.52 : 621,579.72 = 249,212.88 : x
  2. Step 2: Convert to fraction form
    450,413.52/621,579.72 = 249,212.88/x
  3. Step 3: Cross multiply
    450,413.52x = 621,579.72 × 249,212.88
  4. Step 4: Simplify right side
    450,413.52x = 154,905,672,170.79
  5. Step 5: Solve for x
    x = 154,905,672,170.79/450,413.52
  6. Step 6: Final answer
    x = 343,918.79

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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.