Home / 1,299,338.40-1,949,007.60-457,975.20

Finding the Fourth Proportional to 1,299,338.40, 1,949,007.60 and 457,975.20

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Solution

The fourth proportional to 1,299,338.40, 1,949,007.60 and 457,975.20 is: 686,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,338.40 : 1,949,007.60 = 457,975.20 : x
  2. Step 2: Convert to fraction form
    1,299,338.40/1,949,007.60 = 457,975.20/x
  3. Step 3: Cross multiply
    1,299,338.40x = 1,949,007.60 × 457,975.20
  4. Step 4: Simplify right side
    1,299,338.40x = 892,597,145,411.52
  5. Step 5: Solve for x
    x = 892,597,145,411.52/1,299,338.40
  6. Step 6: Final answer
    x = 686,962.80

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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.