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Finding the Fourth Proportional to 637,596.61, 878,386.71 and 443,670.82

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Solution

The fourth proportional to 637,596.61, 878,386.71 and 443,670.82 is: 611,224.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,596.61 : 878,386.71 = 443,670.82 : x
  2. Step 2: Convert to fraction form
    637,596.61/878,386.71 = 443,670.82/x
  3. Step 3: Cross multiply
    637,596.61x = 878,386.71 × 443,670.82
  4. Step 4: Simplify right side
    637,596.61x = 389,714,551,902.80
  5. Step 5: Solve for x
    x = 389,714,551,902.80/637,596.61
  6. Step 6: Final answer
    x = 611,224.32

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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.