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Finding the Fourth Proportional to 571,734.10, 788,981.29 and 353,885.01

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Solution

The fourth proportional to 571,734.10, 788,981.29 and 353,885.01 is: 488,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,734.10 : 788,981.29 = 353,885.01 : x
  2. Step 2: Convert to fraction form
    571,734.10/788,981.29 = 353,885.01/x
  3. Step 3: Cross multiply
    571,734.10x = 788,981.29 × 353,885.01
  4. Step 4: Simplify right side
    571,734.10x = 279,208,651,701.46
  5. Step 5: Solve for x
    x = 279,208,651,701.46/571,734.10
  6. Step 6: Final answer
    x = 488,354.03

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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.