Home / 1,312,858.80-1,969,288.20-471,495.60

Finding the Fourth Proportional to 1,312,858.80, 1,969,288.20 and 471,495.60

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Solution

The fourth proportional to 1,312,858.80, 1,969,288.20 and 471,495.60 is: 707,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,858.80 : 1,969,288.20 = 471,495.60 : x
  2. Step 2: Convert to fraction form
    1,312,858.80/1,969,288.20 = 471,495.60/x
  3. Step 3: Cross multiply
    1,312,858.80x = 1,969,288.20 × 471,495.60
  4. Step 4: Simplify right side
    1,312,858.80x = 928,510,721,431.92
  5. Step 5: Solve for x
    x = 928,510,721,431.92/1,312,858.80
  6. Step 6: Final answer
    x = 707,243.40

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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.