Home / 564,102.09-778,461.04-309,453.28

Finding the Fourth Proportional to 564,102.09, 778,461.04 and 309,453.28

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Solution

The fourth proportional to 564,102.09, 778,461.04 and 309,453.28 is: 427,045.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,102.09 : 778,461.04 = 309,453.28 : x
  2. Step 2: Convert to fraction form
    564,102.09/778,461.04 = 309,453.28/x
  3. Step 3: Cross multiply
    564,102.09x = 778,461.04 × 309,453.28
  4. Step 4: Simplify right side
    564,102.09x = 240,897,323,540.10
  5. Step 5: Solve for x
    x = 240,897,323,540.10/564,102.09
  6. Step 6: Final answer
    x = 427,045.61

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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.