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Finding the Fourth Proportional to 1,368,959.72, 1,889,746.12 and 852,968.54

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Solution

The fourth proportional to 1,368,959.72, 1,889,746.12 and 852,968.54 is: 1,177,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,959.72 : 1,889,746.12 = 852,968.54 : x
  2. Step 2: Convert to fraction form
    1,368,959.72/1,889,746.12 = 852,968.54/x
  3. Step 3: Cross multiply
    1,368,959.72x = 1,889,746.12 × 852,968.54
  4. Step 4: Simplify right side
    1,368,959.72x = 1,611,893,989,939.69
  5. Step 5: Solve for x
    x = 1,611,893,989,939.69/1,368,959.72
  6. Step 6: Final answer
    x = 1,177,459.04

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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.