Home / 1,220,660.08-1,684,461.63-669,364.36

Finding the Fourth Proportional to 1,220,660.08, 1,684,461.63 and 669,364.36

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Solution

The fourth proportional to 1,220,660.08, 1,684,461.63 and 669,364.36 is: 923,695.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,660.08 : 1,684,461.63 = 669,364.36 : x
  2. Step 2: Convert to fraction form
    1,220,660.08/1,684,461.63 = 669,364.36/x
  3. Step 3: Cross multiply
    1,220,660.08x = 1,684,461.63 × 669,364.36
  4. Step 4: Simplify right side
    1,220,660.08x = 1,127,518,580,909.51
  5. Step 5: Solve for x
    x = 1,127,518,580,909.51/1,220,660.08
  6. Step 6: Final answer
    x = 923,695.79

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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.