Home / 1,312,865.60-1,969,363.20-683,009.60

Finding the Fourth Proportional to 1,312,865.60, 1,969,363.20 and 683,009.60

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Solution

The fourth proportional to 1,312,865.60, 1,969,363.20 and 683,009.60 is: 1,024,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,865.60 : 1,969,363.20 = 683,009.60 : x
  2. Step 2: Convert to fraction form
    1,312,865.60/1,969,363.20 = 683,009.60/x
  3. Step 3: Cross multiply
    1,312,865.60x = 1,969,363.20 × 683,009.60
  4. Step 4: Simplify right side
    1,312,865.60x = 1,345,093,971,486.72
  5. Step 5: Solve for x
    x = 1,345,093,971,486.72/1,312,865.60
  6. Step 6: Final answer
    x = 1,024,548.11

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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.