Home / 1,390,538.40-2,085,807.60-892,874.40

Finding the Fourth Proportional to 1,390,538.40, 2,085,807.60 and 892,874.40

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Solution

The fourth proportional to 1,390,538.40, 2,085,807.60 and 892,874.40 is: 1,339,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,538.40 : 2,085,807.60 = 892,874.40 : x
  2. Step 2: Convert to fraction form
    1,390,538.40/2,085,807.60 = 892,874.40/x
  3. Step 3: Cross multiply
    1,390,538.40x = 2,085,807.60 × 892,874.40
  4. Step 4: Simplify right side
    1,390,538.40x = 1,862,364,209,365.44
  5. Step 5: Solve for x
    x = 1,862,364,209,365.44/1,390,538.40
  6. Step 6: Final answer
    x = 1,339,311.60

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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.