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Finding the Fourth Proportional to 525,628.80, 788,011.20 and 226,339.20

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Solution

The fourth proportional to 525,628.80, 788,011.20 and 226,339.20 is: 339,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,628.80 : 788,011.20 = 226,339.20 : x
  2. Step 2: Convert to fraction form
    525,628.80/788,011.20 = 226,339.20/x
  3. Step 3: Cross multiply
    525,628.80x = 788,011.20 × 226,339.20
  4. Step 4: Simplify right side
    525,628.80x = 178,357,824,599.04
  5. Step 5: Solve for x
    x = 178,357,824,599.04/525,628.80
  6. Step 6: Final answer
    x = 339,322.78

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1.5x scale

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.