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Finding the Fourth Proportional to 635,614.64, 877,150.80 and 349,140.32

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Solution

The fourth proportional to 635,614.64, 877,150.80 and 349,140.32 is: 481,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,614.64 : 877,150.80 = 349,140.32 : x
  2. Step 2: Convert to fraction form
    635,614.64/877,150.80 = 349,140.32/x
  3. Step 3: Cross multiply
    635,614.64x = 877,150.80 × 349,140.32
  4. Step 4: Simplify right side
    635,614.64x = 306,248,711,000.26
  5. Step 5: Solve for x
    x = 306,248,711,000.26/635,614.64
  6. Step 6: Final answer
    x = 481,815.07

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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.