Home / 939,718.52-1,296,811.55-509,998.65

Finding the Fourth Proportional to 939,718.52, 1,296,811.55 and 509,998.65

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Solution

The fourth proportional to 939,718.52, 1,296,811.55 and 509,998.65 is: 703,798.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,718.52 : 1,296,811.55 = 509,998.65 : x
  2. Step 2: Convert to fraction form
    939,718.52/1,296,811.55 = 509,998.65/x
  3. Step 3: Cross multiply
    939,718.52x = 1,296,811.55 × 509,998.65
  4. Step 4: Simplify right side
    939,718.52x = 661,372,133,320.35
  5. Step 5: Solve for x
    x = 661,372,133,320.35/939,718.52
  6. Step 6: Final answer
    x = 703,798.13

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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.