Home / 760,220.89-1,139,421.27-354,867.73

Finding the Fourth Proportional to 760,220.89, 1,139,421.27 and 354,867.73

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Solution

The fourth proportional to 760,220.89, 1,139,421.27 and 354,867.73 is: 531,876.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,220.89 : 1,139,421.27 = 354,867.73 : x
  2. Step 2: Convert to fraction form
    760,220.89/1,139,421.27 = 354,867.73/x
  3. Step 3: Cross multiply
    760,220.89x = 1,139,421.27 × 354,867.73
  4. Step 4: Simplify right side
    760,220.89x = 404,343,839,598.62
  5. Step 5: Solve for x
    x = 404,343,839,598.62/760,220.89
  6. Step 6: Final answer
    x = 531,876.78

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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.