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Finding the Fourth Proportional to 507,425.36, 699,909.40 and 326,366.32

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Solution

The fourth proportional to 507,425.36, 699,909.40 and 326,366.32 is: 450,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,425.36 : 699,909.40 = 326,366.32 : x
  2. Step 2: Convert to fraction form
    507,425.36/699,909.40 = 326,366.32/x
  3. Step 3: Cross multiply
    507,425.36x = 699,909.40 × 326,366.32
  4. Step 4: Simplify right side
    507,425.36x = 228,426,855,211.41
  5. Step 5: Solve for x
    x = 228,426,855,211.41/507,425.36
  6. Step 6: Final answer
    x = 450,168.39

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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.