Home / 1,314,260.40-1,971,390.60-684,404.40

Finding the Fourth Proportional to 1,314,260.40, 1,971,390.60 and 684,404.40

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Solution

The fourth proportional to 1,314,260.40, 1,971,390.60 and 684,404.40 is: 1,026,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,260.40 : 1,971,390.60 = 684,404.40 : x
  2. Step 2: Convert to fraction form
    1,314,260.40/1,971,390.60 = 684,404.40/x
  3. Step 3: Cross multiply
    1,314,260.40x = 1,971,390.60 × 684,404.40
  4. Step 4: Simplify right side
    1,314,260.40x = 1,349,228,400,758.64
  5. Step 5: Solve for x
    x = 1,349,228,400,758.64/1,314,260.40
  6. Step 6: Final answer
    x = 1,026,606.60

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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.