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Finding the Fourth Proportional to 647,435.70, 970,923.15 and 292,619.70

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Solution

The fourth proportional to 647,435.70, 970,923.15 and 292,619.70 is: 438,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,435.70 : 970,923.15 = 292,619.70 : x
  2. Step 2: Convert to fraction form
    647,435.70/970,923.15 = 292,619.70/x
  3. Step 3: Cross multiply
    647,435.70x = 970,923.15 × 292,619.70
  4. Step 4: Simplify right side
    647,435.70x = 284,111,240,876.06
  5. Step 5: Solve for x
    x = 284,111,240,876.06/647,435.70
  6. Step 6: Final answer
    x = 438,825.42

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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.