Home / 369,786.36-510,589.26-306,489.72

Finding the Fourth Proportional to 369,786.36, 510,589.26 and 306,489.72

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Solution

The fourth proportional to 369,786.36, 510,589.26 and 306,489.72 is: 423,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,786.36 : 510,589.26 = 306,489.72 : x
  2. Step 2: Convert to fraction form
    369,786.36/510,589.26 = 306,489.72/x
  3. Step 3: Cross multiply
    369,786.36x = 510,589.26 × 306,489.72
  4. Step 4: Simplify right side
    369,786.36x = 156,490,359,332.41
  5. Step 5: Solve for x
    x = 156,490,359,332.41/369,786.36
  6. Step 6: Final answer
    x = 423,191.27

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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.