Home / 790,623.30-1,186,156.34-317,640.80

Finding the Fourth Proportional to 790,623.30, 1,186,156.34 and 317,640.80

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Solution

The fourth proportional to 790,623.30, 1,186,156.34 and 317,640.80 is: 476,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,623.30 : 1,186,156.34 = 317,640.80 : x
  2. Step 2: Convert to fraction form
    790,623.30/1,186,156.34 = 317,640.80/x
  3. Step 3: Cross multiply
    790,623.30x = 1,186,156.34 × 317,640.80
  4. Step 4: Simplify right side
    790,623.30x = 376,771,648,762.67
  5. Step 5: Solve for x
    x = 376,771,648,762.67/790,623.30
  6. Step 6: Final answer
    x = 476,550.15

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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.