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Finding the Fourth Proportional to 550,419.01, 758,875.26 and 356,484.15

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Solution

The fourth proportional to 550,419.01, 758,875.26 and 356,484.15 is: 491,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,419.01 : 758,875.26 = 356,484.15 : x
  2. Step 2: Convert to fraction form
    550,419.01/758,875.26 = 356,484.15/x
  3. Step 3: Cross multiply
    550,419.01x = 758,875.26 × 356,484.15
  4. Step 4: Simplify right side
    550,419.01x = 270,526,998,337.52
  5. Step 5: Solve for x
    x = 270,526,998,337.52/550,419.01
  6. Step 6: Final answer
    x = 491,492.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.