Home / 959,680.20-1,440,038.70-398,771.40

Finding the Fourth Proportional to 959,680.20, 1,440,038.70 and 398,771.40

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Solution

The fourth proportional to 959,680.20, 1,440,038.70 and 398,771.40 is: 598,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,680.20 : 1,440,038.70 = 398,771.40 : x
  2. Step 2: Convert to fraction form
    959,680.20/1,440,038.70 = 398,771.40/x
  3. Step 3: Cross multiply
    959,680.20x = 1,440,038.70 × 398,771.40
  4. Step 4: Simplify right side
    959,680.20x = 574,246,248,453.18
  5. Step 5: Solve for x
    x = 574,246,248,453.18/959,680.20
  6. Step 6: Final answer
    x = 598,372.51

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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.