Home / 1,203,214.28-1,660,435.76-666,670.28

Finding the Fourth Proportional to 1,203,214.28, 1,660,435.76 and 666,670.28

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Solution

The fourth proportional to 1,203,214.28, 1,660,435.76 and 666,670.28 is: 920,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,214.28 : 1,660,435.76 = 666,670.28 : x
  2. Step 2: Convert to fraction form
    1,203,214.28/1,660,435.76 = 666,670.28/x
  3. Step 3: Cross multiply
    1,203,214.28x = 1,660,435.76 × 666,670.28
  4. Step 4: Simplify right side
    1,203,214.28x = 1,106,963,173,041.21
  5. Step 5: Solve for x
    x = 1,106,963,173,041.21/1,203,214.28
  6. Step 6: Final answer
    x = 920,005.02

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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.