Home / 1,388,045.70-2,080,513.35-589,191.30

Finding the Fourth Proportional to 1,388,045.70, 2,080,513.35 and 589,191.30

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Solution

The fourth proportional to 1,388,045.70, 2,080,513.35 and 589,191.30 is: 883,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,045.70 : 2,080,513.35 = 589,191.30 : x
  2. Step 2: Convert to fraction form
    1,388,045.70/2,080,513.35 = 589,191.30/x
  3. Step 3: Cross multiply
    1,388,045.70x = 2,080,513.35 × 589,191.30
  4. Step 4: Simplify right side
    1,388,045.70x = 1,225,820,365,353.86
  5. Step 5: Solve for x
    x = 1,225,820,365,353.86/1,388,045.70
  6. Step 6: Final answer
    x = 883,126.81

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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.