Home / 1,915,807.37-2,643,678.96-1,056,349.31

Finding the Fourth Proportional to 1,915,807.37, 2,643,678.96 and 1,056,349.31

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Solution

The fourth proportional to 1,915,807.37, 2,643,678.96 and 1,056,349.31 is: 1,457,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,807.37 : 2,643,678.96 = 1,056,349.31 : x
  2. Step 2: Convert to fraction form
    1,915,807.37/2,643,678.96 = 1,056,349.31/x
  3. Step 3: Cross multiply
    1,915,807.37x = 2,643,678.96 × 1,056,349.31
  4. Step 4: Simplify right side
    1,915,807.37x = 2,792,648,445,257.52
  5. Step 5: Solve for x
    x = 2,792,648,445,257.52/1,915,807.37
  6. Step 6: Final answer
    x = 1,457,687.49

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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.