Home / 768,413.46-1,060,405.58-424,270.79

Finding the Fourth Proportional to 768,413.46, 1,060,405.58 and 424,270.79

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Solution

The fourth proportional to 768,413.46, 1,060,405.58 and 424,270.79 is: 585,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,413.46 : 1,060,405.58 = 424,270.79 : x
  2. Step 2: Convert to fraction form
    768,413.46/1,060,405.58 = 424,270.79/x
  3. Step 3: Cross multiply
    768,413.46x = 1,060,405.58 × 424,270.79
  4. Step 4: Simplify right side
    768,413.46x = 449,899,108,905.66
  5. Step 5: Solve for x
    x = 449,899,108,905.66/768,413.46
  6. Step 6: Final answer
    x = 585,490.93

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1.5x scale

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.