Home / 688,688.36-1,032,440.87-239,350.85

Finding the Fourth Proportional to 688,688.36, 1,032,440.87 and 239,350.85

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Solution

The fourth proportional to 688,688.36, 1,032,440.87 and 239,350.85 is: 358,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,688.36 : 1,032,440.87 = 239,350.85 : x
  2. Step 2: Convert to fraction form
    688,688.36/1,032,440.87 = 239,350.85/x
  3. Step 3: Cross multiply
    688,688.36x = 1,032,440.87 × 239,350.85
  4. Step 4: Simplify right side
    688,688.36x = 247,115,593,450.28
  5. Step 5: Solve for x
    x = 247,115,593,450.28/688,688.36
  6. Step 6: Final answer
    x = 358,820.64

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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.