Home / 1,125,848-1,553,211.24-666,621.20

Finding the Fourth Proportional to 1,125,848, 1,553,211.24 and 666,621.20

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Solution

The fourth proportional to 1,125,848, 1,553,211.24 and 666,621.20 is: 919,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,848 : 1,553,211.24 = 666,621.20 : x
  2. Step 2: Convert to fraction form
    1,125,848/1,553,211.24 = 666,621.20/x
  3. Step 3: Cross multiply
    1,125,848x = 1,553,211.24 × 666,621.20
  4. Step 4: Simplify right side
    1,125,848x = 1,035,403,540,662.29
  5. Step 5: Solve for x
    x = 1,035,403,540,662.29/1,125,848
  6. Step 6: Final answer
    x = 919,665.48

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1.5x scale

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.