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Finding the Fourth Proportional to 519,948.52, 779,920.72 and 164,990.22

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Solution

The fourth proportional to 519,948.52, 779,920.72 and 164,990.22 is: 247,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,948.52 : 779,920.72 = 164,990.22 : x
  2. Step 2: Convert to fraction form
    519,948.52/779,920.72 = 164,990.22/x
  3. Step 3: Cross multiply
    519,948.52x = 779,920.72 × 164,990.22
  4. Step 4: Simplify right side
    519,948.52x = 128,679,291,175.36
  5. Step 5: Solve for x
    x = 128,679,291,175.36/519,948.52
  6. Step 6: Final answer
    x = 247,484.68

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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.