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Finding the Fourth Proportional to 641,342.46, 885,038.94 and 350,952.86

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Solution

The fourth proportional to 641,342.46, 885,038.94 and 350,952.86 is: 484,307.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,342.46 : 885,038.94 = 350,952.86 : x
  2. Step 2: Convert to fraction form
    641,342.46/885,038.94 = 350,952.86/x
  3. Step 3: Cross multiply
    641,342.46x = 885,038.94 × 350,952.86
  4. Step 4: Simplify right side
    641,342.46x = 310,606,949,416.97
  5. Step 5: Solve for x
    x = 310,606,949,416.97/641,342.46
  6. Step 6: Final answer
    x = 484,307.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.