Home / 901,398.39-1,243,998.86-514,222.34

Finding the Fourth Proportional to 901,398.39, 1,243,998.86 and 514,222.34

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Solution

The fourth proportional to 901,398.39, 1,243,998.86 and 514,222.34 is: 709,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,398.39 : 1,243,998.86 = 514,222.34 : x
  2. Step 2: Convert to fraction form
    901,398.39/1,243,998.86 = 514,222.34/x
  3. Step 3: Cross multiply
    901,398.39x = 1,243,998.86 × 514,222.34
  4. Step 4: Simplify right side
    901,398.39x = 639,691,999,812.09
  5. Step 5: Solve for x
    x = 639,691,999,812.09/901,398.39
  6. Step 6: Final answer
    x = 709,666.23

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Double scale
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Similar ratio
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1.5x scale

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.