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Finding the Fourth Proportional to 571,053.96, 788,054.04 and 316,404.54

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Solution

The fourth proportional to 571,053.96, 788,054.04 and 316,404.54 is: 436,638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,053.96 : 788,054.04 = 316,404.54 : x
  2. Step 2: Convert to fraction form
    571,053.96/788,054.04 = 316,404.54/x
  3. Step 3: Cross multiply
    571,053.96x = 788,054.04 × 316,404.54
  4. Step 4: Simplify right side
    571,053.96x = 249,343,876,021.34
  5. Step 5: Solve for x
    x = 249,343,876,021.34/571,053.96
  6. Step 6: Final answer
    x = 436,638.03

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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.