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Finding the Fourth Proportional to 670,630.37, 925,307.92 and 425,525.76

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Solution

The fourth proportional to 670,630.37, 925,307.92 and 425,525.76 is: 587,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,630.37 : 925,307.92 = 425,525.76 : x
  2. Step 2: Convert to fraction form
    670,630.37/925,307.92 = 425,525.76/x
  3. Step 3: Cross multiply
    670,630.37x = 925,307.92 × 425,525.76
  4. Step 4: Simplify right side
    670,630.37x = 393,742,355,765.30
  5. Step 5: Solve for x
    x = 393,742,355,765.30/670,630.37
  6. Step 6: Final answer
    x = 587,122.76

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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.