Home / 405,087.40-607,631.10-124,604.20

Finding the Fourth Proportional to 405,087.40, 607,631.10 and 124,604.20

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Solution

The fourth proportional to 405,087.40, 607,631.10 and 124,604.20 is: 186,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,087.40 : 607,631.10 = 124,604.20 : x
  2. Step 2: Convert to fraction form
    405,087.40/607,631.10 = 124,604.20/x
  3. Step 3: Cross multiply
    405,087.40x = 607,631.10 × 124,604.20
  4. Step 4: Simplify right side
    405,087.40x = 75,713,387,110.62
  5. Step 5: Solve for x
    x = 75,713,387,110.62/405,087.40
  6. Step 6: Final answer
    x = 186,906.30

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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.