Home / 838,670.25-1,157,413.53-631,567.89

Finding the Fourth Proportional to 838,670.25, 1,157,413.53 and 631,567.89

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Solution

The fourth proportional to 838,670.25, 1,157,413.53 and 631,567.89 is: 871,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,670.25 : 1,157,413.53 = 631,567.89 : x
  2. Step 2: Convert to fraction form
    838,670.25/1,157,413.53 = 631,567.89/x
  3. Step 3: Cross multiply
    838,670.25x = 1,157,413.53 × 631,567.89
  4. Step 4: Simplify right side
    838,670.25x = 730,985,220,999.55
  5. Step 5: Solve for x
    x = 730,985,220,999.55/838,670.25
  6. Step 6: Final answer
    x = 871,600.28

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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.