Home / 1,286,641.35-1,775,530.80-742,758.75

Finding the Fourth Proportional to 1,286,641.35, 1,775,530.80 and 742,758.75

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Solution

The fourth proportional to 1,286,641.35, 1,775,530.80 and 742,758.75 is: 1,024,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,641.35 : 1,775,530.80 = 742,758.75 : x
  2. Step 2: Convert to fraction form
    1,286,641.35/1,775,530.80 = 742,758.75/x
  3. Step 3: Cross multiply
    1,286,641.35x = 1,775,530.80 × 742,758.75
  4. Step 4: Simplify right side
    1,286,641.35x = 1,318,791,037,594.50
  5. Step 5: Solve for x
    x = 1,318,791,037,594.50/1,286,641.35
  6. Step 6: Final answer
    x = 1,024,987.30

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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.