Home / 1,220,502.32-1,684,392.64-676,808.64

Finding the Fourth Proportional to 1,220,502.32, 1,684,392.64 and 676,808.64

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Solution

The fourth proportional to 1,220,502.32, 1,684,392.64 and 676,808.64 is: 934,051.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,502.32 : 1,684,392.64 = 676,808.64 : x
  2. Step 2: Convert to fraction form
    1,220,502.32/1,684,392.64 = 676,808.64/x
  3. Step 3: Cross multiply
    1,220,502.32x = 1,684,392.64 × 676,808.64
  4. Step 4: Simplify right side
    1,220,502.32x = 1,140,011,491,904.41
  5. Step 5: Solve for x
    x = 1,140,011,491,904.41/1,220,502.32
  6. Step 6: Final answer
    x = 934,051.07

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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.