Home / 790,628.48-1,185,793.06-385,413.66

Finding the Fourth Proportional to 790,628.48, 1,185,793.06 and 385,413.66

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Solution

The fourth proportional to 790,628.48, 1,185,793.06 and 385,413.66 is: 578,047.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,628.48 : 1,185,793.06 = 385,413.66 : x
  2. Step 2: Convert to fraction form
    790,628.48/1,185,793.06 = 385,413.66/x
  3. Step 3: Cross multiply
    790,628.48x = 1,185,793.06 × 385,413.66
  4. Step 4: Simplify right side
    790,628.48x = 457,020,837,328.23
  5. Step 5: Solve for x
    x = 457,020,837,328.23/790,628.48
  6. Step 6: Final answer
    x = 578,047.53

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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.