Home / 447,746.10-671,619.15-422,085.30

Finding the Fourth Proportional to 447,746.10, 671,619.15 and 422,085.30

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Solution

The fourth proportional to 447,746.10, 671,619.15 and 422,085.30 is: 633,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,746.10 : 671,619.15 = 422,085.30 : x
  2. Step 2: Convert to fraction form
    447,746.10/671,619.15 = 422,085.30/x
  3. Step 3: Cross multiply
    447,746.10x = 671,619.15 × 422,085.30
  4. Step 4: Simplify right side
    447,746.10x = 283,480,570,413.50
  5. Step 5: Solve for x
    x = 283,480,570,413.50/447,746.10
  6. Step 6: Final answer
    x = 633,127.95

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Double scale
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Similar ratio
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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.