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Finding the Fourth Proportional to 677,875.47, 936,705.84 and 493,793.55

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Solution

The fourth proportional to 677,875.47, 936,705.84 and 493,793.55 is: 682,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,875.47 : 936,705.84 = 493,793.55 : x
  2. Step 2: Convert to fraction form
    677,875.47/936,705.84 = 493,793.55/x
  3. Step 3: Cross multiply
    677,875.47x = 936,705.84 × 493,793.55
  4. Step 4: Simplify right side
    677,875.47x = 462,539,302,039.33
  5. Step 5: Solve for x
    x = 462,539,302,039.33/677,875.47
  6. Step 6: Final answer
    x = 682,336.69

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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.