Home / 709,507.80-1,064,261.70-260,079.30

Finding the Fourth Proportional to 709,507.80, 1,064,261.70 and 260,079.30

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Solution

The fourth proportional to 709,507.80, 1,064,261.70 and 260,079.30 is: 390,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,507.80 : 1,064,261.70 = 260,079.30 : x
  2. Step 2: Convert to fraction form
    709,507.80/1,064,261.70 = 260,079.30/x
  3. Step 3: Cross multiply
    709,507.80x = 1,064,261.70 × 260,079.30
  4. Step 4: Simplify right side
    709,507.80x = 276,792,437,952.81
  5. Step 5: Solve for x
    x = 276,792,437,952.81/709,507.80
  6. Step 6: Final answer
    x = 390,118.95

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Similar ratio
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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.