Home / 1,230,138.61-1,843,711.93-870,413.11

Finding the Fourth Proportional to 1,230,138.61, 1,843,711.93 and 870,413.11

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Solution

The fourth proportional to 1,230,138.61, 1,843,711.93 and 870,413.11 is: 1,304,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,138.61 : 1,843,711.93 = 870,413.11 : x
  2. Step 2: Convert to fraction form
    1,230,138.61/1,843,711.93 = 870,413.11/x
  3. Step 3: Cross multiply
    1,230,138.61x = 1,843,711.93 × 870,413.11
  4. Step 4: Simplify right side
    1,230,138.61x = 1,604,791,034,935.40
  5. Step 5: Solve for x
    x = 1,604,791,034,935.40/1,230,138.61
  6. Step 6: Final answer
    x = 1,304,561.15

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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.