Home / 877,099.66-1,316,174.36-378,463.66

Finding the Fourth Proportional to 877,099.66, 1,316,174.36 and 378,463.66

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Solution

The fourth proportional to 877,099.66, 1,316,174.36 and 378,463.66 is: 567,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,099.66 : 1,316,174.36 = 378,463.66 : x
  2. Step 2: Convert to fraction form
    877,099.66/1,316,174.36 = 378,463.66/x
  3. Step 3: Cross multiply
    877,099.66x = 1,316,174.36 × 378,463.66
  4. Step 4: Simplify right side
    877,099.66x = 498,124,163,139.48
  5. Step 5: Solve for x
    x = 498,124,163,139.48/877,099.66
  6. Step 6: Final answer
    x = 567,921.97

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Double scale
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Similar ratio
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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.