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Finding the Fourth Proportional to 629,031.40, 869,168.74 and 502,749.16

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Solution

The fourth proportional to 629,031.40, 869,168.74 and 502,749.16 is: 694,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,031.40 : 869,168.74 = 502,749.16 : x
  2. Step 2: Convert to fraction form
    629,031.40/869,168.74 = 502,749.16/x
  3. Step 3: Cross multiply
    629,031.40x = 869,168.74 × 502,749.16
  4. Step 4: Simplify right side
    629,031.40x = 436,973,853,933.26
  5. Step 5: Solve for x
    x = 436,973,853,933.26/629,031.40
  6. Step 6: Final answer
    x = 694,677.33

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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.