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Finding the Fourth Proportional to 452,630.76, 624,117.96 and 289,072.32

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Solution

The fourth proportional to 452,630.76, 624,117.96 and 289,072.32 is: 398,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,630.76 : 624,117.96 = 289,072.32 : x
  2. Step 2: Convert to fraction form
    452,630.76/624,117.96 = 289,072.32/x
  3. Step 3: Cross multiply
    452,630.76x = 624,117.96 × 289,072.32
  4. Step 4: Simplify right side
    452,630.76x = 180,415,226,650.87
  5. Step 5: Solve for x
    x = 180,415,226,650.87/452,630.76
  6. Step 6: Final answer
    x = 398,592.50

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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.