Home / 492,085.40-679,092.24-288,117.23

Finding the Fourth Proportional to 492,085.40, 679,092.24 and 288,117.23

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Solution

The fourth proportional to 492,085.40, 679,092.24 and 288,117.23 is: 397,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,085.40 : 679,092.24 = 288,117.23 : x
  2. Step 2: Convert to fraction form
    492,085.40/679,092.24 = 288,117.23/x
  3. Step 3: Cross multiply
    492,085.40x = 679,092.24 × 288,117.23
  4. Step 4: Simplify right side
    492,085.40x = 195,658,176,801.03
  5. Step 5: Solve for x
    x = 195,658,176,801.03/492,085.40
  6. Step 6: Final answer
    x = 397,610.20

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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.