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Finding the Fourth Proportional to 580,633,000.80, 870,949,501.20 and 399,234,472.80

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Solution

The fourth proportional to 580,633,000.80, 870,949,501.20 and 399,234,472.80 is: 598,851,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,633,000.80 : 870,949,501.20 = 399,234,472.80 : x
  2. Step 2: Convert to fraction form
    580,633,000.80/870,949,501.20 = 399,234,472.80/x
  3. Step 3: Cross multiply
    580,633,000.80x = 870,949,501.20 × 399,234,472.80
  4. Step 4: Simplify right side
    580,633,000.80x = 347,713,064,947,004,992
  5. Step 5: Solve for x
    x = 347,713,064,947,004,992/580,633,000.80
  6. Step 6: Final answer
    x = 598,851,709.20

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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.