Home / 785,736.84-1,178,681.22-312,315.96

Finding the Fourth Proportional to 785,736.84, 1,178,681.22 and 312,315.96

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Solution

The fourth proportional to 785,736.84, 1,178,681.22 and 312,315.96 is: 468,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,736.84 : 1,178,681.22 = 312,315.96 : x
  2. Step 2: Convert to fraction form
    785,736.84/1,178,681.22 = 312,315.96/x
  3. Step 3: Cross multiply
    785,736.84x = 1,178,681.22 × 312,315.96
  4. Step 4: Simplify right side
    785,736.84x = 368,120,956,758.27
  5. Step 5: Solve for x
    x = 368,120,956,758.27/785,736.84
  6. Step 6: Final answer
    x = 468,504.13

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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.