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Finding the Fourth Proportional to 423,000.40, 634,500.60 and 360,014.80

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Solution

The fourth proportional to 423,000.40, 634,500.60 and 360,014.80 is: 540,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,000.40 : 634,500.60 = 360,014.80 : x
  2. Step 2: Convert to fraction form
    423,000.40/634,500.60 = 360,014.80/x
  3. Step 3: Cross multiply
    423,000.40x = 634,500.60 × 360,014.80
  4. Step 4: Simplify right side
    423,000.40x = 228,429,606,608.88
  5. Step 5: Solve for x
    x = 228,429,606,608.88/423,000.40
  6. Step 6: Final answer
    x = 540,022.20

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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.