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Finding the Fourth Proportional to 1,531,898.66, 2,113,978.85 and 852,835.22

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Solution

The fourth proportional to 1,531,898.66, 2,113,978.85 and 852,835.22 is: 1,176,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,898.66 : 2,113,978.85 = 852,835.22 : x
  2. Step 2: Convert to fraction form
    1,531,898.66/2,113,978.85 = 852,835.22/x
  3. Step 3: Cross multiply
    1,531,898.66x = 2,113,978.85 × 852,835.22
  4. Step 4: Simplify right side
    1,531,898.66x = 1,802,875,617,615.10
  5. Step 5: Solve for x
    x = 1,802,875,617,615.10/1,531,898.66
  6. Step 6: Final answer
    x = 1,176,889.61

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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.