Home / 760,116.96-1,140,480-286,936.56

Finding the Fourth Proportional to 760,116.96, 1,140,480 and 286,936.56

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Solution

The fourth proportional to 760,116.96, 1,140,480 and 286,936.56 is: 430,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,116.96 : 1,140,480 = 286,936.56 : x
  2. Step 2: Convert to fraction form
    760,116.96/1,140,480 = 286,936.56/x
  3. Step 3: Cross multiply
    760,116.96x = 1,140,480 × 286,936.56
  4. Step 4: Simplify right side
    760,116.96x = 327,245,407,948.80
  5. Step 5: Solve for x
    x = 327,245,407,948.80/760,116.96
  6. Step 6: Final answer
    x = 430,519.81

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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.