Home / 913,047.12-1,260,408.62-545,653.91

Finding the Fourth Proportional to 913,047.12, 1,260,408.62 and 545,653.91

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Solution

The fourth proportional to 913,047.12, 1,260,408.62 and 545,653.91 is: 753,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,047.12 : 1,260,408.62 = 545,653.91 : x
  2. Step 2: Convert to fraction form
    913,047.12/1,260,408.62 = 545,653.91/x
  3. Step 3: Cross multiply
    913,047.12x = 1,260,408.62 × 545,653.91
  4. Step 4: Simplify right side
    913,047.12x = 687,746,891,700.70
  5. Step 5: Solve for x
    x = 687,746,891,700.70/913,047.12
  6. Step 6: Final answer
    x = 753,243.59

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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.