Home / 666,560.72-919,830.92-380,173.08

Finding the Fourth Proportional to 666,560.72, 919,830.92 and 380,173.08

Calculator

Solution

The fourth proportional to 666,560.72, 919,830.92 and 380,173.08 is: 524,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,560.72 : 919,830.92 = 380,173.08 : x
  2. Step 2: Convert to fraction form
    666,560.72/919,830.92 = 380,173.08/x
  3. Step 3: Cross multiply
    666,560.72x = 919,830.92 × 380,173.08
  4. Step 4: Simplify right side
    666,560.72x = 349,694,953,935.63
  5. Step 5: Solve for x
    x = 349,694,953,935.63/666,560.72
  6. Step 6: Final answer
    x = 524,625.80

Related Problems

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.