Home / 709,706.61-979,382.48-403,776.41

Finding the Fourth Proportional to 709,706.61, 979,382.48 and 403,776.41

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Solution

The fourth proportional to 709,706.61, 979,382.48 and 403,776.41 is: 557,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,706.61 : 979,382.48 = 403,776.41 : x
  2. Step 2: Convert to fraction form
    709,706.61/979,382.48 = 403,776.41/x
  3. Step 3: Cross multiply
    709,706.61x = 979,382.48 × 403,776.41
  4. Step 4: Simplify right side
    709,706.61x = 395,451,534,875.50
  5. Step 5: Solve for x
    x = 395,451,534,875.50/709,706.61
  6. Step 6: Final answer
    x = 557,204.24

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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.