Home / 589,721.60-883,285.79-487,359.54

Finding the Fourth Proportional to 589,721.60, 883,285.79 and 487,359.54

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Solution

The fourth proportional to 589,721.60, 883,285.79 and 487,359.54 is: 729,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,721.60 : 883,285.79 = 487,359.54 : x
  2. Step 2: Convert to fraction form
    589,721.60/883,285.79 = 487,359.54/x
  3. Step 3: Cross multiply
    589,721.60x = 883,285.79 × 487,359.54
  4. Step 4: Simplify right side
    589,721.60x = 430,477,753,866.14
  5. Step 5: Solve for x
    x = 430,477,753,866.14/589,721.60
  6. Step 6: Final answer
    x = 729,967.76

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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.