Home / 1,312,859.80-1,969,289.70-471,496.60

Finding the Fourth Proportional to 1,312,859.80, 1,969,289.70 and 471,496.60

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Solution

The fourth proportional to 1,312,859.80, 1,969,289.70 and 471,496.60 is: 707,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,859.80 : 1,969,289.70 = 471,496.60 : x
  2. Step 2: Convert to fraction form
    1,312,859.80/1,969,289.70 = 471,496.60/x
  3. Step 3: Cross multiply
    1,312,859.80x = 1,969,289.70 × 471,496.60
  4. Step 4: Simplify right side
    1,312,859.80x = 928,513,397,965.02
  5. Step 5: Solve for x
    x = 928,513,397,965.02/1,312,859.80
  6. Step 6: Final answer
    x = 707,244.90

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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.