Home / 1,259,617.63-1,889,427.80-312,988.34

Finding the Fourth Proportional to 1,259,617.63, 1,889,427.80 and 312,988.34

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Solution

The fourth proportional to 1,259,617.63, 1,889,427.80 and 312,988.34 is: 469,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,617.63 : 1,889,427.80 = 312,988.34 : x
  2. Step 2: Convert to fraction form
    1,259,617.63/1,889,427.80 = 312,988.34/x
  3. Step 3: Cross multiply
    1,259,617.63x = 1,889,427.80 × 312,988.34
  4. Step 4: Simplify right side
    1,259,617.63x = 591,368,870,671.85
  5. Step 5: Solve for x
    x = 591,368,870,671.85/1,259,617.63
  6. Step 6: Final answer
    x = 469,482.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.