Home / 786,605.40-1,180,199.70-313,630.20

Finding the Fourth Proportional to 786,605.40, 1,180,199.70 and 313,630.20

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Solution

The fourth proportional to 786,605.40, 1,180,199.70 and 313,630.20 is: 470,561.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,605.40 : 1,180,199.70 = 313,630.20 : x
  2. Step 2: Convert to fraction form
    786,605.40/1,180,199.70 = 313,630.20/x
  3. Step 3: Cross multiply
    786,605.40x = 1,180,199.70 × 313,630.20
  4. Step 4: Simplify right side
    786,605.40x = 370,146,267,950.94
  5. Step 5: Solve for x
    x = 370,146,267,950.94/786,605.40
  6. Step 6: Final answer
    x = 470,561.56

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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.