Home / 1,081,415.89-1,622,478.95-442,257.17

Finding the Fourth Proportional to 1,081,415.89, 1,622,478.95 and 442,257.17

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Solution

The fourth proportional to 1,081,415.89, 1,622,478.95 and 442,257.17 is: 663,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,415.89 : 1,622,478.95 = 442,257.17 : x
  2. Step 2: Convert to fraction form
    1,081,415.89/1,622,478.95 = 442,257.17/x
  3. Step 3: Cross multiply
    1,081,415.89x = 1,622,478.95 × 442,257.17
  4. Step 4: Simplify right side
    1,081,415.89x = 717,552,938,902.51
  5. Step 5: Solve for x
    x = 717,552,938,902.51/1,081,415.89
  6. Step 6: Final answer
    x = 663,530.98

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Double scale
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1.5x scale

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.