Home / 785,454.32-1,178,157.94-216,870.18

Finding the Fourth Proportional to 785,454.32, 1,178,157.94 and 216,870.18

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Solution

The fourth proportional to 785,454.32, 1,178,157.94 and 216,870.18 is: 325,298.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,454.32 : 1,178,157.94 = 216,870.18 : x
  2. Step 2: Convert to fraction form
    785,454.32/1,178,157.94 = 216,870.18/x
  3. Step 3: Cross multiply
    785,454.32x = 1,178,157.94 × 216,870.18
  4. Step 4: Simplify right side
    785,454.32x = 255,507,324,516.23
  5. Step 5: Solve for x
    x = 255,507,324,516.23/785,454.32
  6. Step 6: Final answer
    x = 325,298.77

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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.