Home / 1,125,846-1,553,208.48-666,619.20

Finding the Fourth Proportional to 1,125,846, 1,553,208.48 and 666,619.20

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Solution

The fourth proportional to 1,125,846, 1,553,208.48 and 666,619.20 is: 919,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,846 : 1,553,208.48 = 666,619.20 : x
  2. Step 2: Convert to fraction form
    1,125,846/1,553,208.48 = 666,619.20/x
  3. Step 3: Cross multiply
    1,125,846x = 1,553,208.48 × 666,619.20
  4. Step 4: Simplify right side
    1,125,846x = 1,035,398,594,370.82
  5. Step 5: Solve for x
    x = 1,035,398,594,370.82/1,125,846
  6. Step 6: Final answer
    x = 919,662.72

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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.