Home / 686,772.62-1,030,442.37-370,857.50

Finding the Fourth Proportional to 686,772.62, 1,030,442.37 and 370,857.50

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Solution

The fourth proportional to 686,772.62, 1,030,442.37 and 370,857.50 is: 556,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,772.62 : 1,030,442.37 = 370,857.50 : x
  2. Step 2: Convert to fraction form
    686,772.62/1,030,442.37 = 370,857.50/x
  3. Step 3: Cross multiply
    686,772.62x = 1,030,442.37 × 370,857.50
  4. Step 4: Simplify right side
    686,772.62x = 382,147,281,232.28
  5. Step 5: Solve for x
    x = 382,147,281,232.28/686,772.62
  6. Step 6: Final answer
    x = 556,439.31

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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.