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Finding the Fourth Proportional to 629,480.60, 868,656.08 and 357,547.66

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Solution

The fourth proportional to 629,480.60, 868,656.08 and 357,547.66 is: 493,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,480.60 : 868,656.08 = 357,547.66 : x
  2. Step 2: Convert to fraction form
    629,480.60/868,656.08 = 357,547.66/x
  3. Step 3: Cross multiply
    629,480.60x = 868,656.08 × 357,547.66
  4. Step 4: Simplify right side
    629,480.60x = 310,585,944,789.39
  5. Step 5: Solve for x
    x = 310,585,944,789.39/629,480.60
  6. Step 6: Final answer
    x = 493,400.34

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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.