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Finding the Fourth Proportional to 510,384.90, 765,905.40 and 297,152.40

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Solution

The fourth proportional to 510,384.90, 765,905.40 and 297,152.40 is: 445,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,384.90 : 765,905.40 = 297,152.40 : x
  2. Step 2: Convert to fraction form
    510,384.90/765,905.40 = 297,152.40/x
  3. Step 3: Cross multiply
    510,384.90x = 765,905.40 × 297,152.40
  4. Step 4: Simplify right side
    510,384.90x = 227,590,627,782.96
  5. Step 5: Solve for x
    x = 227,590,627,782.96/510,384.90
  6. Step 6: Final answer
    x = 445,919.59

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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.