Home / 786,306.40-1,179,751.20-313,331.20

Finding the Fourth Proportional to 786,306.40, 1,179,751.20 and 313,331.20

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Solution

The fourth proportional to 786,306.40, 1,179,751.20 and 313,331.20 is: 470,113.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,306.40 : 1,179,751.20 = 313,331.20 : x
  2. Step 2: Convert to fraction form
    786,306.40/1,179,751.20 = 313,331.20/x
  3. Step 3: Cross multiply
    786,306.40x = 1,179,751.20 × 313,331.20
  4. Step 4: Simplify right side
    786,306.40x = 369,652,859,197.44
  5. Step 5: Solve for x
    x = 369,652,859,197.44/786,306.40
  6. Step 6: Final answer
    x = 470,113.00

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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.