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Finding the Fourth Proportional to 629,482.83, 868,659.13 and 357,549.87

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Solution

The fourth proportional to 629,482.83, 868,659.13 and 357,549.87 is: 493,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,482.83 : 868,659.13 = 357,549.87 : x
  2. Step 2: Convert to fraction form
    629,482.83/868,659.13 = 357,549.87/x
  3. Step 3: Cross multiply
    629,482.83x = 868,659.13 × 357,549.87
  4. Step 4: Simplify right side
    629,482.83x = 310,588,959,005.81
  5. Step 5: Solve for x
    x = 310,588,959,005.81/629,482.83
  6. Step 6: Final answer
    x = 493,403.38

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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.