Home / 629,756.42-869,031.06-357,786.56

Finding the Fourth Proportional to 629,756.42, 869,031.06 and 357,786.56

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Solution

The fourth proportional to 629,756.42, 869,031.06 and 357,786.56 is: 493,726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,756.42 : 869,031.06 = 357,786.56 : x
  2. Step 2: Convert to fraction form
    629,756.42/869,031.06 = 357,786.56/x
  3. Step 3: Cross multiply
    629,756.42x = 869,031.06 × 357,786.56
  4. Step 4: Simplify right side
    629,756.42x = 310,927,636,333.98
  5. Step 5: Solve for x
    x = 310,927,636,333.98/629,756.42
  6. Step 6: Final answer
    x = 493,726.83

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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.