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Finding the Fourth Proportional to 425,458.32, 587,136.36 and 234,478.64

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Solution

The fourth proportional to 425,458.32, 587,136.36 and 234,478.64 is: 323,582.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,458.32 : 587,136.36 = 234,478.64 : x
  2. Step 2: Convert to fraction form
    425,458.32/587,136.36 = 234,478.64/x
  3. Step 3: Cross multiply
    425,458.32x = 587,136.36 × 234,478.64
  4. Step 4: Simplify right side
    425,458.32x = 137,670,935,187.35
  5. Step 5: Solve for x
    x = 137,670,935,187.35/425,458.32
  6. Step 6: Final answer
    x = 323,582.66

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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.