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Finding the Fourth Proportional to 508,018.20, 760,532.46 and 339,119.61

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Solution

The fourth proportional to 508,018.20, 760,532.46 and 339,119.61 is: 507,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,018.20 : 760,532.46 = 339,119.61 : x
  2. Step 2: Convert to fraction form
    508,018.20/760,532.46 = 339,119.61/x
  3. Step 3: Cross multiply
    508,018.20x = 760,532.46 × 339,119.61
  4. Step 4: Simplify right side
    508,018.20x = 257,911,467,424.88
  5. Step 5: Solve for x
    x = 257,911,467,424.88/508,018.20
  6. Step 6: Final answer
    x = 507,681.56

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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.