Home / 999,152.45-1,378,747.03-563,545.79

Finding the Fourth Proportional to 999,152.45, 1,378,747.03 and 563,545.79

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Solution

The fourth proportional to 999,152.45, 1,378,747.03 and 563,545.79 is: 777,646.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,152.45 : 1,378,747.03 = 563,545.79 : x
  2. Step 2: Convert to fraction form
    999,152.45/1,378,747.03 = 563,545.79/x
  3. Step 3: Cross multiply
    999,152.45x = 1,378,747.03 × 563,545.79
  4. Step 4: Simplify right side
    999,152.45x = 776,987,081,413.78
  5. Step 5: Solve for x
    x = 776,987,081,413.78/999,152.45
  6. Step 6: Final answer
    x = 777,646.18

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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.