Home / 640,865.02-961,875.33-341,594.86

Finding the Fourth Proportional to 640,865.02, 961,875.33 and 341,594.86

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Solution

The fourth proportional to 640,865.02, 961,875.33 and 341,594.86 is: 512,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,865.02 : 961,875.33 = 341,594.86 : x
  2. Step 2: Convert to fraction form
    640,865.02/961,875.33 = 341,594.86/x
  3. Step 3: Cross multiply
    640,865.02x = 961,875.33 × 341,594.86
  4. Step 4: Simplify right side
    640,865.02x = 328,571,662,171.45
  5. Step 5: Solve for x
    x = 328,571,662,171.45/640,865.02
  6. Step 6: Final answer
    x = 512,700.26

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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.