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Finding the Fourth Proportional to 529,647.86, 730,910.97 and 300,248.40

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Solution

The fourth proportional to 529,647.86, 730,910.97 and 300,248.40 is: 414,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,647.86 : 730,910.97 = 300,248.40 : x
  2. Step 2: Convert to fraction form
    529,647.86/730,910.97 = 300,248.40/x
  3. Step 3: Cross multiply
    529,647.86x = 730,910.97 × 300,248.40
  4. Step 4: Simplify right side
    529,647.86x = 219,454,849,284.95
  5. Step 5: Solve for x
    x = 219,454,849,284.95/529,647.86
  6. Step 6: Final answer
    x = 414,341.05

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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.