Home / 1,236,403.40-1,853,568.30-645,427.40

Finding the Fourth Proportional to 1,236,403.40, 1,853,568.30 and 645,427.40

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Solution

The fourth proportional to 1,236,403.40, 1,853,568.30 and 645,427.40 is: 967,599.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,403.40 : 1,853,568.30 = 645,427.40 : x
  2. Step 2: Convert to fraction form
    1,236,403.40/1,853,568.30 = 645,427.40/x
  3. Step 3: Cross multiply
    1,236,403.40x = 1,853,568.30 × 645,427.40
  4. Step 4: Simplify right side
    1,236,403.40x = 1,196,343,768,591.42
  5. Step 5: Solve for x
    x = 1,196,343,768,591.42/1,236,403.40
  6. Step 6: Final answer
    x = 967,599.87

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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.