Home / 709,346.80-1,064,117.40-259,958.80

Finding the Fourth Proportional to 709,346.80, 1,064,117.40 and 259,958.80

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Solution

The fourth proportional to 709,346.80, 1,064,117.40 and 259,958.80 is: 389,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,346.80 : 1,064,117.40 = 259,958.80 : x
  2. Step 2: Convert to fraction form
    709,346.80/1,064,117.40 = 259,958.80/x
  3. Step 3: Cross multiply
    709,346.80x = 1,064,117.40 × 259,958.80
  4. Step 4: Simplify right side
    709,346.80x = 276,626,682,363.12
  5. Step 5: Solve for x
    x = 276,626,682,363.12/709,346.80
  6. Step 6: Final answer
    x = 389,973.82

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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.