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Finding the Fourth Proportional to 519,548.40, 779,346.90 and 164,590.20

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Solution

The fourth proportional to 519,548.40, 779,346.90 and 164,590.20 is: 246,893.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,548.40 : 779,346.90 = 164,590.20 : x
  2. Step 2: Convert to fraction form
    519,548.40/779,346.90 = 164,590.20/x
  3. Step 3: Cross multiply
    519,548.40x = 779,346.90 × 164,590.20
  4. Step 4: Simplify right side
    519,548.40x = 128,272,862,140.38
  5. Step 5: Solve for x
    x = 128,272,862,140.38/519,548.40
  6. Step 6: Final answer
    x = 246,893.00

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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.