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Finding the Fourth Proportional to 571,248.64, 787,413.72 and 450,195.76

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Solution

The fourth proportional to 571,248.64, 787,413.72 and 450,195.76 is: 620,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,248.64 : 787,413.72 = 450,195.76 : x
  2. Step 2: Convert to fraction form
    571,248.64/787,413.72 = 450,195.76/x
  3. Step 3: Cross multiply
    571,248.64x = 787,413.72 × 450,195.76
  4. Step 4: Simplify right side
    571,248.64x = 354,490,318,109.83
  5. Step 5: Solve for x
    x = 354,490,318,109.83/571,248.64
  6. Step 6: Final answer
    x = 620,553.46

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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.