Home / 716,987.20-1,075,999.20-401,108.80

Finding the Fourth Proportional to 716,987.20, 1,075,999.20 and 401,108.80

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Solution

The fourth proportional to 716,987.20, 1,075,999.20 and 401,108.80 is: 601,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,987.20 : 1,075,999.20 = 401,108.80 : x
  2. Step 2: Convert to fraction form
    716,987.20/1,075,999.20 = 401,108.80/x
  3. Step 3: Cross multiply
    716,987.20x = 1,075,999.20 × 401,108.80
  4. Step 4: Simplify right side
    716,987.20x = 431,592,747,912.96
  5. Step 5: Solve for x
    x = 431,592,747,912.96/716,987.20
  6. Step 6: Final answer
    x = 601,953.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.