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Finding the Fourth Proportional to 635,875.11, 877,490.01 and 349,395.12

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Solution

The fourth proportional to 635,875.11, 877,490.01 and 349,395.12 is: 482,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,875.11 : 877,490.01 = 349,395.12 : x
  2. Step 2: Convert to fraction form
    635,875.11/877,490.01 = 349,395.12/x
  3. Step 3: Cross multiply
    635,875.11x = 877,490.01 × 349,395.12
  4. Step 4: Simplify right side
    635,875.11x = 306,590,727,342.75
  5. Step 5: Solve for x
    x = 306,590,727,342.75/635,875.11
  6. Step 6: Final answer
    x = 482,155.57

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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.