Home / 1,211,457.46-1,671,822.52-667,612.76

Finding the Fourth Proportional to 1,211,457.46, 1,671,822.52 and 667,612.76

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Solution

The fourth proportional to 1,211,457.46, 1,671,822.52 and 667,612.76 is: 921,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,457.46 : 1,671,822.52 = 667,612.76 : x
  2. Step 2: Convert to fraction form
    1,211,457.46/1,671,822.52 = 667,612.76/x
  3. Step 3: Cross multiply
    1,211,457.46x = 1,671,822.52 × 667,612.76
  4. Step 4: Simplify right side
    1,211,457.46x = 1,116,130,046,807.36
  5. Step 5: Solve for x
    x = 1,116,130,046,807.36/1,211,457.46
  6. Step 6: Final answer
    x = 921,311.79

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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.