Home / 879,097.15-1,318,300.67-310,356.87

Finding the Fourth Proportional to 879,097.15, 1,318,300.67 and 310,356.87

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Solution

The fourth proportional to 879,097.15, 1,318,300.67 and 310,356.87 is: 465,413.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,097.15 : 1,318,300.67 = 310,356.87 : x
  2. Step 2: Convert to fraction form
    879,097.15/1,318,300.67 = 310,356.87/x
  3. Step 3: Cross multiply
    879,097.15x = 1,318,300.67 × 310,356.87
  4. Step 4: Simplify right side
    879,097.15x = 409,143,663,746.61
  5. Step 5: Solve for x
    x = 409,143,663,746.61/879,097.15
  6. Step 6: Final answer
    x = 465,413.48

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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.