Home / 780,075.53-1,076,498.88-435,912.34

Finding the Fourth Proportional to 780,075.53, 1,076,498.88 and 435,912.34

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Solution

The fourth proportional to 780,075.53, 1,076,498.88 and 435,912.34 is: 601,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,075.53 : 1,076,498.88 = 435,912.34 : x
  2. Step 2: Convert to fraction form
    780,075.53/1,076,498.88 = 435,912.34/x
  3. Step 3: Cross multiply
    780,075.53x = 1,076,498.88 × 435,912.34
  4. Step 4: Simplify right side
    780,075.53x = 469,259,140,405.69
  5. Step 5: Solve for x
    x = 469,259,140,405.69/780,075.53
  6. Step 6: Final answer
    x = 601,556.03

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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.