Home / 629,759.07-869,034.73-357,789.22

Finding the Fourth Proportional to 629,759.07, 869,034.73 and 357,789.22

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Solution

The fourth proportional to 629,759.07, 869,034.73 and 357,789.22 is: 493,730.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,759.07 : 869,034.73 = 357,789.22 : x
  2. Step 2: Convert to fraction form
    629,759.07/869,034.73 = 357,789.22/x
  3. Step 3: Cross multiply
    629,759.07x = 869,034.73 × 357,789.22
  4. Step 4: Simplify right side
    629,759.07x = 310,931,258,199.61
  5. Step 5: Solve for x
    x = 310,931,258,199.61/629,759.07
  6. Step 6: Final answer
    x = 493,730.50

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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.