Home / 1,211,437.08-1,671,760.80-667,623.24

Finding the Fourth Proportional to 1,211,437.08, 1,671,760.80 and 667,623.24

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Solution

The fourth proportional to 1,211,437.08, 1,671,760.80 and 667,623.24 is: 921,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,437.08 : 1,671,760.80 = 667,623.24 : x
  2. Step 2: Convert to fraction form
    1,211,437.08/1,671,760.80 = 667,623.24/x
  3. Step 3: Cross multiply
    1,211,437.08x = 1,671,760.80 × 667,623.24
  4. Step 4: Simplify right side
    1,211,437.08x = 1,116,106,361,800.99
  5. Step 5: Solve for x
    x = 1,116,106,361,800.99/1,211,437.08
  6. Step 6: Final answer
    x = 921,307.74

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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.