Home / 927,091.96-1,390,853.61-287,361.76

Finding the Fourth Proportional to 927,091.96, 1,390,853.61 and 287,361.76

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Solution

The fourth proportional to 927,091.96, 1,390,853.61 and 287,361.76 is: 431,109.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,091.96 : 1,390,853.61 = 287,361.76 : x
  2. Step 2: Convert to fraction form
    927,091.96/1,390,853.61 = 287,361.76/x
  3. Step 3: Cross multiply
    927,091.96x = 1,390,853.61 × 287,361.76
  4. Step 4: Simplify right side
    927,091.96x = 399,678,141,271.95
  5. Step 5: Solve for x
    x = 399,678,141,271.95/927,091.96
  6. Step 6: Final answer
    x = 431,109.49

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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.