Home / 602,413.89-831,893.75-387,931.16

Finding the Fourth Proportional to 602,413.89, 831,893.75 and 387,931.16

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Solution

The fourth proportional to 602,413.89, 831,893.75 and 387,931.16 is: 535,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,413.89 : 831,893.75 = 387,931.16 : x
  2. Step 2: Convert to fraction form
    602,413.89/831,893.75 = 387,931.16/x
  3. Step 3: Cross multiply
    602,413.89x = 831,893.75 × 387,931.16
  4. Step 4: Simplify right side
    602,413.89x = 322,717,501,335.13
  5. Step 5: Solve for x
    x = 322,717,501,335.13/602,413.89
  6. Step 6: Final answer
    x = 535,707.27

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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.