Home / 570,384.79-855,574.85-143,921.61

Finding the Fourth Proportional to 570,384.79, 855,574.85 and 143,921.61

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Solution

The fourth proportional to 570,384.79, 855,574.85 and 143,921.61 is: 215,881.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,384.79 : 855,574.85 = 143,921.61 : x
  2. Step 2: Convert to fraction form
    570,384.79/855,574.85 = 143,921.61/x
  3. Step 3: Cross multiply
    570,384.79x = 855,574.85 × 143,921.61
  4. Step 4: Simplify right side
    570,384.79x = 123,135,710,247.31
  5. Step 5: Solve for x
    x = 123,135,710,247.31/570,384.79
  6. Step 6: Final answer
    x = 215,881.83

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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.