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Finding the Fourth Proportional to 526,898.80, 727,113 and 300,548.08

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Solution

The fourth proportional to 526,898.80, 727,113 and 300,548.08 is: 414,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,898.80 : 727,113 = 300,548.08 : x
  2. Step 2: Convert to fraction form
    526,898.80/727,113 = 300,548.08/x
  3. Step 3: Cross multiply
    526,898.80x = 727,113 × 300,548.08
  4. Step 4: Simplify right side
    526,898.80x = 218,532,416,093.04
  5. Step 5: Solve for x
    x = 218,532,416,093.04/526,898.80
  6. Step 6: Final answer
    x = 414,752.16

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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.