Home / 916,667.82-1,265,015.07-508,795.83

Finding the Fourth Proportional to 916,667.82, 1,265,015.07 and 508,795.83

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Solution

The fourth proportional to 916,667.82, 1,265,015.07 and 508,795.83 is: 702,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,667.82 : 1,265,015.07 = 508,795.83 : x
  2. Step 2: Convert to fraction form
    916,667.82/1,265,015.07 = 508,795.83/x
  3. Step 3: Cross multiply
    916,667.82x = 1,265,015.07 × 508,795.83
  4. Step 4: Simplify right side
    916,667.82x = 643,634,392,503.16
  5. Step 5: Solve for x
    x = 643,634,392,503.16/916,667.82
  6. Step 6: Final answer
    x = 702,145.73

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Double scale
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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.