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Finding the Fourth Proportional to 558,000.58, 770,101 and 316,257.20

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Solution

The fourth proportional to 558,000.58, 770,101 and 316,257.20 is: 436,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,000.58 : 770,101 = 316,257.20 : x
  2. Step 2: Convert to fraction form
    558,000.58/770,101 = 316,257.20/x
  3. Step 3: Cross multiply
    558,000.58x = 770,101 × 316,257.20
  4. Step 4: Simplify right side
    558,000.58x = 243,549,985,977.20
  5. Step 5: Solve for x
    x = 243,549,985,977.20/558,000.58
  6. Step 6: Final answer
    x = 436,469.06

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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.