Home / 913,624.46-1,260,786.50-505,717.56

Finding the Fourth Proportional to 913,624.46, 1,260,786.50 and 505,717.56

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Solution

The fourth proportional to 913,624.46, 1,260,786.50 and 505,717.56 is: 697,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,624.46 : 1,260,786.50 = 505,717.56 : x
  2. Step 2: Convert to fraction form
    913,624.46/1,260,786.50 = 505,717.56/x
  3. Step 3: Cross multiply
    913,624.46x = 1,260,786.50 × 505,717.56
  4. Step 4: Simplify right side
    913,624.46x = 637,601,872,460.94
  5. Step 5: Solve for x
    x = 637,601,872,460.94/913,624.46
  6. Step 6: Final answer
    x = 697,881.79

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Double scale
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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.