Home / 1,212,017.08-1,672,588.64-668,140.93

Finding the Fourth Proportional to 1,212,017.08, 1,672,588.64 and 668,140.93

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Solution

The fourth proportional to 1,212,017.08, 1,672,588.64 and 668,140.93 is: 922,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,017.08 : 1,672,588.64 = 668,140.93 : x
  2. Step 2: Convert to fraction form
    1,212,017.08/1,672,588.64 = 668,140.93/x
  3. Step 3: Cross multiply
    1,212,017.08x = 1,672,588.64 × 668,140.93
  4. Step 4: Simplify right side
    1,212,017.08x = 1,117,524,929,437.04
  5. Step 5: Solve for x
    x = 1,117,524,929,437.04/1,212,017.08
  6. Step 6: Final answer
    x = 922,037.28

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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.