Home / 629,746.56-869,039.04-343,269.12

Finding the Fourth Proportional to 629,746.56, 869,039.04 and 343,269.12

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Solution

The fourth proportional to 629,746.56, 869,039.04 and 343,269.12 is: 473,705.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,746.56 : 869,039.04 = 343,269.12 : x
  2. Step 2: Convert to fraction form
    629,746.56/869,039.04 = 343,269.12/x
  3. Step 3: Cross multiply
    629,746.56x = 869,039.04 × 343,269.12
  4. Step 4: Simplify right side
    629,746.56x = 298,314,266,506.45
  5. Step 5: Solve for x
    x = 298,314,266,506.45/629,746.56
  6. Step 6: Final answer
    x = 473,705.27

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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.