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Finding the Fourth Proportional to 593,220.52, 817,988.34 and 378,019.72

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Solution

The fourth proportional to 593,220.52, 817,988.34 and 378,019.72 is: 521,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,220.52 : 817,988.34 = 378,019.72 : x
  2. Step 2: Convert to fraction form
    593,220.52/817,988.34 = 378,019.72/x
  3. Step 3: Cross multiply
    593,220.52x = 817,988.34 × 378,019.72
  4. Step 4: Simplify right side
    593,220.52x = 309,215,723,250.07
  5. Step 5: Solve for x
    x = 309,215,723,250.07/593,220.52
  6. Step 6: Final answer
    x = 521,249.20

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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.