Home / 1,315,000.40-1,971,348.60-892,907.60

Finding the Fourth Proportional to 1,315,000.40, 1,971,348.60 and 892,907.60

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Solution

The fourth proportional to 1,315,000.40, 1,971,348.60 and 892,907.60 is: 1,338,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,000.40 : 1,971,348.60 = 892,907.60 : x
  2. Step 2: Convert to fraction form
    1,315,000.40/1,971,348.60 = 892,907.60/x
  3. Step 3: Cross multiply
    1,315,000.40x = 1,971,348.60 × 892,907.60
  4. Step 4: Simplify right side
    1,315,000.40x = 1,760,232,147,189.36
  5. Step 5: Solve for x
    x = 1,760,232,147,189.36/1,315,000.40
  6. Step 6: Final answer
    x = 1,338,579.17

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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.