Home / 1,539,456.31-2,124,444.37-860,392.81

Finding the Fourth Proportional to 1,539,456.31, 2,124,444.37 and 860,392.81

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Solution

The fourth proportional to 1,539,456.31, 2,124,444.37 and 860,392.81 is: 1,187,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,456.31 : 2,124,444.37 = 860,392.81 : x
  2. Step 2: Convert to fraction form
    1,539,456.31/2,124,444.37 = 860,392.81/x
  3. Step 3: Cross multiply
    1,539,456.31x = 2,124,444.37 × 860,392.81
  4. Step 4: Simplify right side
    1,539,456.31x = 1,827,856,661,192.98
  5. Step 5: Solve for x
    x = 1,827,856,661,192.98/1,539,456.31
  6. Step 6: Final answer
    x = 1,187,339.09

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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.