Home / 492,263.37-679,385.25-288,392.07

Finding the Fourth Proportional to 492,263.37, 679,385.25 and 288,392.07

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Solution

The fourth proportional to 492,263.37, 679,385.25 and 288,392.07 is: 398,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,263.37 : 679,385.25 = 288,392.07 : x
  2. Step 2: Convert to fraction form
    492,263.37/679,385.25 = 288,392.07/x
  3. Step 3: Cross multiply
    492,263.37x = 679,385.25 × 288,392.07
  4. Step 4: Simplify right side
    492,263.37x = 195,929,318,574.97
  5. Step 5: Solve for x
    x = 195,929,318,574.97/492,263.37
  6. Step 6: Final answer
    x = 398,017.26

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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.