Home / 572,922.21-790,336.15-389,170.23

Finding the Fourth Proportional to 572,922.21, 790,336.15 and 389,170.23

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Solution

The fourth proportional to 572,922.21, 790,336.15 and 389,170.23 is: 536,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,922.21 : 790,336.15 = 389,170.23 : x
  2. Step 2: Convert to fraction form
    572,922.21/790,336.15 = 389,170.23/x
  3. Step 3: Cross multiply
    572,922.21x = 790,336.15 × 389,170.23
  4. Step 4: Simplify right side
    572,922.21x = 307,575,301,272.82
  5. Step 5: Solve for x
    x = 307,575,301,272.82/572,922.21
  6. Step 6: Final answer
    x = 536,853.51

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Double scale
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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.