Home / 646,351.19-891,964.53-359,938.83

Finding the Fourth Proportional to 646,351.19, 891,964.53 and 359,938.83

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Solution

The fourth proportional to 646,351.19, 891,964.53 and 359,938.83 is: 496,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,351.19 : 891,964.53 = 359,938.83 : x
  2. Step 2: Convert to fraction form
    646,351.19/891,964.53 = 359,938.83/x
  3. Step 3: Cross multiply
    646,351.19x = 891,964.53 × 359,938.83
  4. Step 4: Simplify right side
    646,351.19x = 321,052,669,329.70
  5. Step 5: Solve for x
    x = 321,052,669,329.70/646,351.19
  6. Step 6: Final answer
    x = 496,715.53

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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.