Home / 1,210,246.56-1,670,180.40-666,422.64

Finding the Fourth Proportional to 1,210,246.56, 1,670,180.40 and 666,422.64

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Solution

The fourth proportional to 1,210,246.56, 1,670,180.40 and 666,422.64 is: 919,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,246.56 : 1,670,180.40 = 666,422.64 : x
  2. Step 2: Convert to fraction form
    1,210,246.56/1,670,180.40 = 666,422.64/x
  3. Step 3: Cross multiply
    1,210,246.56x = 1,670,180.40 × 666,422.64
  4. Step 4: Simplify right side
    1,210,246.56x = 1,113,046,031,444.26
  5. Step 5: Solve for x
    x = 1,113,046,031,444.26/1,210,246.56
  6. Step 6: Final answer
    x = 919,685.35

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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.