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Finding the Fourth Proportional to 526,911.52, 727,070.16 and 300,543.52

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Solution

The fourth proportional to 526,911.52, 727,070.16 and 300,543.52 is: 414,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,911.52 : 727,070.16 = 300,543.52 : x
  2. Step 2: Convert to fraction form
    526,911.52/727,070.16 = 300,543.52/x
  3. Step 3: Cross multiply
    526,911.52x = 727,070.16 × 300,543.52
  4. Step 4: Simplify right side
    526,911.52x = 218,516,225,173.36
  5. Step 5: Solve for x
    x = 218,516,225,173.36/526,911.52
  6. Step 6: Final answer
    x = 414,711.42

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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.