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Finding the Fourth Proportional to 571,132.67, 788,161.42 and 316,483.85

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Solution

The fourth proportional to 571,132.67, 788,161.42 and 316,483.85 is: 436,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,132.67 : 788,161.42 = 316,483.85 : x
  2. Step 2: Convert to fraction form
    571,132.67/788,161.42 = 316,483.85/x
  3. Step 3: Cross multiply
    571,132.67x = 788,161.42 × 316,483.85
  4. Step 4: Simplify right side
    571,132.67x = 249,440,362,989.08
  5. Step 5: Solve for x
    x = 249,440,362,989.08/571,132.67
  6. Step 6: Final answer
    x = 436,746.80

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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.