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Finding the Fourth Proportional to 707,684.04, 976,626.72 and 385,407.72

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Solution

The fourth proportional to 707,684.04, 976,626.72 and 385,407.72 is: 531,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,684.04 : 976,626.72 = 385,407.72 : x
  2. Step 2: Convert to fraction form
    707,684.04/976,626.72 = 385,407.72/x
  3. Step 3: Cross multiply
    707,684.04x = 976,626.72 × 385,407.72
  4. Step 4: Simplify right side
    707,684.04x = 376,399,477,446.28
  5. Step 5: Solve for x
    x = 376,399,477,446.28/707,684.04
  6. Step 6: Final answer
    x = 531,875.04

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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.