Home / 916,157.34-1,263,771.85-571,394.72

Finding the Fourth Proportional to 916,157.34, 1,263,771.85 and 571,394.72

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Solution

The fourth proportional to 916,157.34, 1,263,771.85 and 571,394.72 is: 788,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,157.34 : 1,263,771.85 = 571,394.72 : x
  2. Step 2: Convert to fraction form
    916,157.34/1,263,771.85 = 571,394.72/x
  3. Step 3: Cross multiply
    916,157.34x = 1,263,771.85 × 571,394.72
  4. Step 4: Simplify right side
    916,157.34x = 722,112,556,996.86
  5. Step 5: Solve for x
    x = 722,112,556,996.86/916,157.34
  6. Step 6: Final answer
    x = 788,197.10

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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.