Home / 757,185.86-1,045,029.64-485,560.46

Finding the Fourth Proportional to 757,185.86, 1,045,029.64 and 485,560.46

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Solution

The fourth proportional to 757,185.86, 1,045,029.64 and 485,560.46 is: 670,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,185.86 : 1,045,029.64 = 485,560.46 : x
  2. Step 2: Convert to fraction form
    757,185.86/1,045,029.64 = 485,560.46/x
  3. Step 3: Cross multiply
    757,185.86x = 1,045,029.64 × 485,560.46
  4. Step 4: Simplify right side
    757,185.86x = 507,425,072,712.03
  5. Step 5: Solve for x
    x = 507,425,072,712.03/757,185.86
  6. Step 6: Final answer
    x = 670,146.00

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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.