Home / 1,210,056.74-1,669,814.88-666,086.28

Finding the Fourth Proportional to 1,210,056.74, 1,669,814.88 and 666,086.28

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Solution

The fourth proportional to 1,210,056.74, 1,669,814.88 and 666,086.28 is: 919,164.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,056.74 : 1,669,814.88 = 666,086.28 : x
  2. Step 2: Convert to fraction form
    1,210,056.74/1,669,814.88 = 666,086.28/x
  3. Step 3: Cross multiply
    1,210,056.74x = 1,669,814.88 × 666,086.28
  4. Step 4: Simplify right side
    1,210,056.74x = 1,112,240,781,707.85
  5. Step 5: Solve for x
    x = 1,112,240,781,707.85/1,210,056.74
  6. Step 6: Final answer
    x = 919,164.16

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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.