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Finding the Fourth Proportional to 526,430.90, 726,474.62 and 284,713.46

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Solution

The fourth proportional to 526,430.90, 726,474.62 and 284,713.46 is: 392,904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,430.90 : 726,474.62 = 284,713.46 : x
  2. Step 2: Convert to fraction form
    526,430.90/726,474.62 = 284,713.46/x
  3. Step 3: Cross multiply
    526,430.90x = 726,474.62 × 284,713.46
  4. Step 4: Simplify right side
    526,430.90x = 206,837,106,552.50
  5. Step 5: Solve for x
    x = 206,837,106,552.50/526,430.90
  6. Step 6: Final answer
    x = 392,904.57

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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.