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Finding the Fourth Proportional to 628,000.20, 942,000.30 and 606,348.90

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Solution

The fourth proportional to 628,000.20, 942,000.30 and 606,348.90 is: 909,523.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,000.20 : 942,000.30 = 606,348.90 : x
  2. Step 2: Convert to fraction form
    628,000.20/942,000.30 = 606,348.90/x
  3. Step 3: Cross multiply
    628,000.20x = 942,000.30 × 606,348.90
  4. Step 4: Simplify right side
    628,000.20x = 571,180,845,704.67
  5. Step 5: Solve for x
    x = 571,180,845,704.67/628,000.20
  6. Step 6: Final answer
    x = 909,523.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.