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Finding the Fourth Proportional to 583,317.60, 804,978.36 and 315,045.60

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Solution

The fourth proportional to 583,317.60, 804,978.36 and 315,045.60 is: 434,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,317.60 : 804,978.36 = 315,045.60 : x
  2. Step 2: Convert to fraction form
    583,317.60/804,978.36 = 315,045.60/x
  3. Step 3: Cross multiply
    583,317.60x = 804,978.36 × 315,045.60
  4. Step 4: Simplify right side
    583,317.60x = 253,604,890,413.22
  5. Step 5: Solve for x
    x = 253,604,890,413.22/583,317.60
  6. Step 6: Final answer
    x = 434,762.97

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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.