Home / 629,921.99-869,366.15-358,030.76

Finding the Fourth Proportional to 629,921.99, 869,366.15 and 358,030.76

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Solution

The fourth proportional to 629,921.99, 869,366.15 and 358,030.76 is: 494,124.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,921.99 : 869,366.15 = 358,030.76 : x
  2. Step 2: Convert to fraction form
    629,921.99/869,366.15 = 358,030.76/x
  3. Step 3: Cross multiply
    629,921.99x = 869,366.15 × 358,030.76
  4. Step 4: Simplify right side
    629,921.99x = 311,259,817,265.79
  5. Step 5: Solve for x
    x = 311,259,817,265.79/629,921.99
  6. Step 6: Final answer
    x = 494,124.39

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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.