Home / 877,480.29-1,209,751.81-696,790.35

Finding the Fourth Proportional to 877,480.29, 1,209,751.81 and 696,790.35

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Solution

The fourth proportional to 877,480.29, 1,209,751.81 and 696,790.35 is: 960,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,480.29 : 1,209,751.81 = 696,790.35 : x
  2. Step 2: Convert to fraction form
    877,480.29/1,209,751.81 = 696,790.35/x
  3. Step 3: Cross multiply
    877,480.29x = 1,209,751.81 × 696,790.35
  4. Step 4: Simplify right side
    877,480.29x = 842,943,385,361.06
  5. Step 5: Solve for x
    x = 842,943,385,361.06/877,480.29
  6. Step 6: Final answer
    x = 960,640.82

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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.