Home / 776,405.16-1,164,607.74-215,439.84

Finding the Fourth Proportional to 776,405.16, 1,164,607.74 and 215,439.84

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Solution

The fourth proportional to 776,405.16, 1,164,607.74 and 215,439.84 is: 323,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,405.16 : 1,164,607.74 = 215,439.84 : x
  2. Step 2: Convert to fraction form
    776,405.16/1,164,607.74 = 215,439.84/x
  3. Step 3: Cross multiply
    776,405.16x = 1,164,607.74 × 215,439.84
  4. Step 4: Simplify right side
    776,405.16x = 250,902,905,168.36
  5. Step 5: Solve for x
    x = 250,902,905,168.36/776,405.16
  6. Step 6: Final answer
    x = 323,159.76

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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.