Home / 870,112.41-1,200,737.03-482,905.35

Finding the Fourth Proportional to 870,112.41, 1,200,737.03 and 482,905.35

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Solution

The fourth proportional to 870,112.41, 1,200,737.03 and 482,905.35 is: 666,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,112.41 : 1,200,737.03 = 482,905.35 : x
  2. Step 2: Convert to fraction form
    870,112.41/1,200,737.03 = 482,905.35/x
  3. Step 3: Cross multiply
    870,112.41x = 1,200,737.03 × 482,905.35
  4. Step 4: Simplify right side
    870,112.41x = 579,842,333,315.58
  5. Step 5: Solve for x
    x = 579,842,333,315.58/870,112.41
  6. Step 6: Final answer
    x = 666,399.34

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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.