Home / 811,507.52-1,217,783.52-437,788.48

Finding the Fourth Proportional to 811,507.52, 1,217,783.52 and 437,788.48

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Solution

The fourth proportional to 811,507.52, 1,217,783.52 and 437,788.48 is: 656,964.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,507.52 : 1,217,783.52 = 437,788.48 : x
  2. Step 2: Convert to fraction form
    811,507.52/1,217,783.52 = 437,788.48/x
  3. Step 3: Cross multiply
    811,507.52x = 1,217,783.52 × 437,788.48
  4. Step 4: Simplify right side
    811,507.52x = 533,131,596,189.85
  5. Step 5: Solve for x
    x = 533,131,596,189.85/811,507.52
  6. Step 6: Final answer
    x = 656,964.46

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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.