Home / 326,623.40-489,935.10-242,642.60

Finding the Fourth Proportional to 326,623.40, 489,935.10 and 242,642.60

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Solution

The fourth proportional to 326,623.40, 489,935.10 and 242,642.60 is: 363,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,623.40 : 489,935.10 = 242,642.60 : x
  2. Step 2: Convert to fraction form
    326,623.40/489,935.10 = 242,642.60/x
  3. Step 3: Cross multiply
    326,623.40x = 489,935.10 × 242,642.60
  4. Step 4: Simplify right side
    326,623.40x = 118,879,126,495.26
  5. Step 5: Solve for x
    x = 118,879,126,495.26/326,623.40
  6. Step 6: Final answer
    x = 363,963.90

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1.5x scale

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.