Home / 902,160-1,244,980.80-499,752

Finding the Fourth Proportional to 902,160, 1,244,980.80 and 499,752

Calculator

Solution

The fourth proportional to 902,160, 1,244,980.80 and 499,752 is: 689,657.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,160 : 1,244,980.80 = 499,752 : x
  2. Step 2: Convert to fraction form
    902,160/1,244,980.80 = 499,752/x
  3. Step 3: Cross multiply
    902,160x = 1,244,980.80 × 499,752
  4. Step 4: Simplify right side
    902,160x = 622,181,644,761.60
  5. Step 5: Solve for x
    x = 622,181,644,761.60/902,160
  6. Step 6: Final answer
    x = 689,657.76

Related Problems

Find fourth proportional to 451,080, 622,490.40 and 249,876
Half scale
Find fourth proportional to 1,804,320, 2,489,961.60 and 999,504
Double scale
Find fourth proportional to 902,161, 1,244,982.18 and 499,753
Similar ratio
Find fourth proportional to 1,353,240, 1,867,471.20 and 749,628
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.