Home / 613,982.07-847,312.08-384,517.89

Finding the Fourth Proportional to 613,982.07, 847,312.08 and 384,517.89

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Solution

The fourth proportional to 613,982.07, 847,312.08 and 384,517.89 is: 530,645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,982.07 : 847,312.08 = 384,517.89 : x
  2. Step 2: Convert to fraction form
    613,982.07/847,312.08 = 384,517.89/x
  3. Step 3: Cross multiply
    613,982.07x = 847,312.08 × 384,517.89
  4. Step 4: Simplify right side
    613,982.07x = 325,806,653,173.11
  5. Step 5: Solve for x
    x = 325,806,653,173.11/613,982.07
  6. Step 6: Final answer
    x = 530,645.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.