Home / 631,877.20-946,279.80-335,736.40

Finding the Fourth Proportional to 631,877.20, 946,279.80 and 335,736.40

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Solution

The fourth proportional to 631,877.20, 946,279.80 and 335,736.40 is: 502,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,877.20 : 946,279.80 = 335,736.40 : x
  2. Step 2: Convert to fraction form
    631,877.20/946,279.80 = 335,736.40/x
  3. Step 3: Cross multiply
    631,877.20x = 946,279.80 × 335,736.40
  4. Step 4: Simplify right side
    631,877.20x = 317,700,573,444.72
  5. Step 5: Solve for x
    x = 317,700,573,444.72/631,877.20
  6. Step 6: Final answer
    x = 502,788.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.