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Finding the Fourth Proportional to 571,689.47, 788,874.56 and 330,050.03

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Solution

The fourth proportional to 571,689.47, 788,874.56 and 330,050.03 is: 455,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,689.47 : 788,874.56 = 330,050.03 : x
  2. Step 2: Convert to fraction form
    571,689.47/788,874.56 = 330,050.03/x
  3. Step 3: Cross multiply
    571,689.47x = 788,874.56 × 330,050.03
  4. Step 4: Simplify right side
    571,689.47x = 260,368,069,074.99
  5. Step 5: Solve for x
    x = 260,368,069,074.99/571,689.47
  6. Step 6: Final answer
    x = 455,436.19

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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.