Home / 917,988.90-1,376,984.43-286,906.02

Finding the Fourth Proportional to 917,988.90, 1,376,984.43 and 286,906.02

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Solution

The fourth proportional to 917,988.90, 1,376,984.43 and 286,906.02 is: 430,359.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,988.90 : 1,376,984.43 = 286,906.02 : x
  2. Step 2: Convert to fraction form
    917,988.90/1,376,984.43 = 286,906.02/x
  3. Step 3: Cross multiply
    917,988.90x = 1,376,984.43 × 286,906.02
  4. Step 4: Simplify right side
    917,988.90x = 395,065,122,413.27
  5. Step 5: Solve for x
    x = 395,065,122,413.27/917,988.90
  6. Step 6: Final answer
    x = 430,359.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.