Home / 790,509.30-1,185,099.48-640,377.28

Finding the Fourth Proportional to 790,509.30, 1,185,099.48 and 640,377.28

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Solution

The fourth proportional to 790,509.30, 1,185,099.48 and 640,377.28 is: 960,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,509.30 : 1,185,099.48 = 640,377.28 : x
  2. Step 2: Convert to fraction form
    790,509.30/1,185,099.48 = 640,377.28/x
  3. Step 3: Cross multiply
    790,509.30x = 1,185,099.48 × 640,377.28
  4. Step 4: Simplify right side
    790,509.30x = 758,910,781,531.82
  5. Step 5: Solve for x
    x = 758,910,781,531.82/790,509.30
  6. Step 6: Final answer
    x = 960,027.64

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1.5x scale

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.