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Finding the Fourth Proportional to 635,995.69, 877,707.71 and 360,406.96

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Solution

The fourth proportional to 635,995.69, 877,707.71 and 360,406.96 is: 497,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,995.69 : 877,707.71 = 360,406.96 : x
  2. Step 2: Convert to fraction form
    635,995.69/877,707.71 = 360,406.96/x
  3. Step 3: Cross multiply
    635,995.69x = 877,707.71 × 360,406.96
  4. Step 4: Simplify right side
    635,995.69x = 316,331,967,529.66
  5. Step 5: Solve for x
    x = 316,331,967,529.66/635,995.69
  6. Step 6: Final answer
    x = 497,380.68

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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.