Home / 849,312.13-1,273,968.17-309,608.87

Finding the Fourth Proportional to 849,312.13, 1,273,968.17 and 309,608.87

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Solution

The fourth proportional to 849,312.13, 1,273,968.17 and 309,608.87 is: 464,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,312.13 : 1,273,968.17 = 309,608.87 : x
  2. Step 2: Convert to fraction form
    849,312.13/1,273,968.17 = 309,608.87/x
  3. Step 3: Cross multiply
    849,312.13x = 1,273,968.17 × 309,608.87
  4. Step 4: Simplify right side
    849,312.13x = 394,431,845,529.67
  5. Step 5: Solve for x
    x = 394,431,845,529.67/849,312.13
  6. Step 6: Final answer
    x = 464,413.30

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1.5x scale

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.