Home / 847,413.09-1,169,502.19-479,955.60

Finding the Fourth Proportional to 847,413.09, 1,169,502.19 and 479,955.60

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Solution

The fourth proportional to 847,413.09, 1,169,502.19 and 479,955.60 is: 662,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,413.09 : 1,169,502.19 = 479,955.60 : x
  2. Step 2: Convert to fraction form
    847,413.09/1,169,502.19 = 479,955.60/x
  3. Step 3: Cross multiply
    847,413.09x = 1,169,502.19 × 479,955.60
  4. Step 4: Simplify right side
    847,413.09x = 561,309,117,055.48
  5. Step 5: Solve for x
    x = 561,309,117,055.48/847,413.09
  6. Step 6: Final answer
    x = 662,379.57

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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.