Home / 771,208.80-1,156,813.20-397,960.80

Finding the Fourth Proportional to 771,208.80, 1,156,813.20 and 397,960.80

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Solution

The fourth proportional to 771,208.80, 1,156,813.20 and 397,960.80 is: 596,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,208.80 : 1,156,813.20 = 397,960.80 : x
  2. Step 2: Convert to fraction form
    771,208.80/1,156,813.20 = 397,960.80/x
  3. Step 3: Cross multiply
    771,208.80x = 1,156,813.20 × 397,960.80
  4. Step 4: Simplify right side
    771,208.80x = 460,366,306,522.56
  5. Step 5: Solve for x
    x = 460,366,306,522.56/771,208.80
  6. Step 6: Final answer
    x = 596,941.20

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Double scale
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Similar ratio
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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.