Home / 757,186.86-1,045,031.01-485,561.46

Finding the Fourth Proportional to 757,186.86, 1,045,031.01 and 485,561.46

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Solution

The fourth proportional to 757,186.86, 1,045,031.01 and 485,561.46 is: 670,147.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,186.86 : 1,045,031.01 = 485,561.46 : x
  2. Step 2: Convert to fraction form
    757,186.86/1,045,031.01 = 485,561.46/x
  3. Step 3: Cross multiply
    757,186.86x = 1,045,031.01 × 485,561.46
  4. Step 4: Simplify right side
    757,186.86x = 507,426,782,960.88
  5. Step 5: Solve for x
    x = 507,426,782,960.88/757,186.86
  6. Step 6: Final answer
    x = 670,147.37

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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.