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Finding the Fourth Proportional to 558,202.68, 770,492.42 and 415,156.48

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Solution

The fourth proportional to 558,202.68, 770,492.42 and 415,156.48 is: 573,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,202.68 : 770,492.42 = 415,156.48 : x
  2. Step 2: Convert to fraction form
    558,202.68/770,492.42 = 415,156.48/x
  3. Step 3: Cross multiply
    558,202.68x = 770,492.42 × 415,156.48
  4. Step 4: Simplify right side
    558,202.68x = 319,874,920,953.88
  5. Step 5: Solve for x
    x = 319,874,920,953.88/558,202.68
  6. Step 6: Final answer
    x = 573,044.40

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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.