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Finding the Fourth Proportional to 510,071.31, 703,888.88 and 348,920.91

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Solution

The fourth proportional to 510,071.31, 703,888.88 and 348,920.91 is: 481,504.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,071.31 : 703,888.88 = 348,920.91 : x
  2. Step 2: Convert to fraction form
    510,071.31/703,888.88 = 348,920.91/x
  3. Step 3: Cross multiply
    510,071.31x = 703,888.88 × 348,920.91
  4. Step 4: Simplify right side
    510,071.31x = 245,601,546,803.88
  5. Step 5: Solve for x
    x = 245,601,546,803.88/510,071.31
  6. Step 6: Final answer
    x = 481,504.33

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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.