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Finding the Fourth Proportional to 519,435.40, 779,177.40 and 164,477.20

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Solution

The fourth proportional to 519,435.40, 779,177.40 and 164,477.20 is: 246,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,435.40 : 779,177.40 = 164,477.20 : x
  2. Step 2: Convert to fraction form
    519,435.40/779,177.40 = 164,477.20/x
  3. Step 3: Cross multiply
    519,435.40x = 779,177.40 × 164,477.20
  4. Step 4: Simplify right side
    519,435.40x = 128,156,917,055.28
  5. Step 5: Solve for x
    x = 128,156,917,055.28/519,435.40
  6. Step 6: Final answer
    x = 246,723.49

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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.