Home / 1,185,572.28-1,778,362.97-287,012.55

Finding the Fourth Proportional to 1,185,572.28, 1,778,362.97 and 287,012.55

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Solution

The fourth proportional to 1,185,572.28, 1,778,362.97 and 287,012.55 is: 430,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,572.28 : 1,778,362.97 = 287,012.55 : x
  2. Step 2: Convert to fraction form
    1,185,572.28/1,778,362.97 = 287,012.55/x
  3. Step 3: Cross multiply
    1,185,572.28x = 1,778,362.97 × 287,012.55
  4. Step 4: Simplify right side
    1,185,572.28x = 510,412,489,410.21
  5. Step 5: Solve for x
    x = 510,412,489,410.21/1,185,572.28
  6. Step 6: Final answer
    x = 430,519.93

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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.