Home / 1,236,442.40-1,853,626.80-645,466.40

Finding the Fourth Proportional to 1,236,442.40, 1,853,626.80 and 645,466.40

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Solution

The fourth proportional to 1,236,442.40, 1,853,626.80 and 645,466.40 is: 967,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,442.40 : 1,853,626.80 = 645,466.40 : x
  2. Step 2: Convert to fraction form
    1,236,442.40/1,853,626.80 = 645,466.40/x
  3. Step 3: Cross multiply
    1,236,442.40x = 1,853,626.80 × 645,466.40
  4. Step 4: Simplify right side
    1,236,442.40x = 1,196,453,817,539.52
  5. Step 5: Solve for x
    x = 1,196,453,817,539.52/1,236,442.40
  6. Step 6: Final answer
    x = 967,658.35

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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.