Home / 646,118.85-891,628.74-359,632.79

Finding the Fourth Proportional to 646,118.85, 891,628.74 and 359,632.79

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Solution

The fourth proportional to 646,118.85, 891,628.74 and 359,632.79 is: 496,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,118.85 : 891,628.74 = 359,632.79 : x
  2. Step 2: Convert to fraction form
    646,118.85/891,628.74 = 359,632.79/x
  3. Step 3: Cross multiply
    646,118.85x = 891,628.74 × 359,632.79
  4. Step 4: Simplify right side
    646,118.85x = 320,658,926,776.68
  5. Step 5: Solve for x
    x = 320,658,926,776.68/646,118.85
  6. Step 6: Final answer
    x = 496,284.74

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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.