Home / 1,299,071.25-1,792,756.07-710,405.28

Finding the Fourth Proportional to 1,299,071.25, 1,792,756.07 and 710,405.28

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Solution

The fourth proportional to 1,299,071.25, 1,792,756.07 and 710,405.28 is: 980,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,071.25 : 1,792,756.07 = 710,405.28 : x
  2. Step 2: Convert to fraction form
    1,299,071.25/1,792,756.07 = 710,405.28/x
  3. Step 3: Cross multiply
    1,299,071.25x = 1,792,756.07 × 710,405.28
  4. Step 4: Simplify right side
    1,299,071.25x = 1,273,583,374,328.02
  5. Step 5: Solve for x
    x = 1,273,583,374,328.02/1,299,071.25
  6. Step 6: Final answer
    x = 980,379.92

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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.