Home / 979,413.60-1,470,286.80-553,288.80

Finding the Fourth Proportional to 979,413.60, 1,470,286.80 and 553,288.80

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Solution

The fourth proportional to 979,413.60, 1,470,286.80 and 553,288.80 is: 830,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,413.60 : 1,470,286.80 = 553,288.80 : x
  2. Step 2: Convert to fraction form
    979,413.60/1,470,286.80 = 553,288.80/x
  3. Step 3: Cross multiply
    979,413.60x = 1,470,286.80 × 553,288.80
  4. Step 4: Simplify right side
    979,413.60x = 813,493,219,227.84
  5. Step 5: Solve for x
    x = 813,493,219,227.84/979,413.60
  6. Step 6: Final answer
    x = 830,592.12

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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.