Home / 703,532.20-1,054,520.70-388,215.40

Finding the Fourth Proportional to 703,532.20, 1,054,520.70 and 388,215.40

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Solution

The fourth proportional to 703,532.20, 1,054,520.70 and 388,215.40 is: 581,894.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,532.20 : 1,054,520.70 = 388,215.40 : x
  2. Step 2: Convert to fraction form
    703,532.20/1,054,520.70 = 388,215.40/x
  3. Step 3: Cross multiply
    703,532.20x = 1,054,520.70 × 388,215.40
  4. Step 4: Simplify right side
    703,532.20x = 409,381,175,358.78
  5. Step 5: Solve for x
    x = 409,381,175,358.78/703,532.20
  6. Step 6: Final answer
    x = 581,894.01

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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.