Home / 526,712.24-787,989.60-405,853.58

Finding the Fourth Proportional to 526,712.24, 787,989.60 and 405,853.58

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Solution

The fourth proportional to 526,712.24, 787,989.60 and 405,853.58 is: 607,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,712.24 : 787,989.60 = 405,853.58 : x
  2. Step 2: Convert to fraction form
    526,712.24/787,989.60 = 405,853.58/x
  3. Step 3: Cross multiply
    526,712.24x = 787,989.60 × 405,853.58
  4. Step 4: Simplify right side
    526,712.24x = 319,808,400,162.77
  5. Step 5: Solve for x
    x = 319,808,400,162.77/526,712.24
  6. Step 6: Final answer
    x = 607,178.60

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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.