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Finding the Fourth Proportional to 529,820.04, 731,129.41 and 300,392.76

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Solution

The fourth proportional to 529,820.04, 731,129.41 and 300,392.76 is: 414,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,820.04 : 731,129.41 = 300,392.76 : x
  2. Step 2: Convert to fraction form
    529,820.04/731,129.41 = 300,392.76/x
  3. Step 3: Cross multiply
    529,820.04x = 731,129.41 × 300,392.76
  4. Step 4: Simplify right side
    529,820.04x = 219,625,979,330.76
  5. Step 5: Solve for x
    x = 219,625,979,330.76/529,820.04
  6. Step 6: Final answer
    x = 414,529.40

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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.