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Finding the Fourth Proportional to 583,350.13, 805,023.72 and 315,078.13

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Solution

The fourth proportional to 583,350.13, 805,023.72 and 315,078.13 is: 434,808.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,350.13 : 805,023.72 = 315,078.13 : x
  2. Step 2: Convert to fraction form
    583,350.13/805,023.72 = 315,078.13/x
  3. Step 3: Cross multiply
    583,350.13x = 805,023.72 × 315,078.13
  4. Step 4: Simplify right side
    583,350.13x = 253,645,362,702.73
  5. Step 5: Solve for x
    x = 253,645,362,702.73/583,350.13
  6. Step 6: Final answer
    x = 434,808.11

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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.