Home / 1,030,256.72-1,421,839.40-571,519.19

Finding the Fourth Proportional to 1,030,256.72, 1,421,839.40 and 571,519.19

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Solution

The fourth proportional to 1,030,256.72, 1,421,839.40 and 571,519.19 is: 788,743.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,256.72 : 1,421,839.40 = 571,519.19 : x
  2. Step 2: Convert to fraction form
    1,030,256.72/1,421,839.40 = 571,519.19/x
  3. Step 3: Cross multiply
    1,030,256.72x = 1,421,839.40 × 571,519.19
  4. Step 4: Simplify right side
    1,030,256.72x = 812,608,505,561.04
  5. Step 5: Solve for x
    x = 812,608,505,561.04/1,030,256.72
  6. Step 6: Final answer
    x = 788,743.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.