Home / 1,315,860.60-1,973,855.70-686,004.60

Finding the Fourth Proportional to 1,315,860.60, 1,973,855.70 and 686,004.60

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Solution

The fourth proportional to 1,315,860.60, 1,973,855.70 and 686,004.60 is: 1,029,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,860.60 : 1,973,855.70 = 686,004.60 : x
  2. Step 2: Convert to fraction form
    1,315,860.60/1,973,855.70 = 686,004.60/x
  3. Step 3: Cross multiply
    1,315,860.60x = 1,973,855.70 × 686,004.60
  4. Step 4: Simplify right side
    1,315,860.60x = 1,354,074,089,936.22
  5. Step 5: Solve for x
    x = 1,354,074,089,936.22/1,315,860.60
  6. Step 6: Final answer
    x = 1,029,040.68

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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.