Home / 689,182.54-950,932.47-402,647.20

Finding the Fourth Proportional to 689,182.54, 950,932.47 and 402,647.20

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Solution

The fourth proportional to 689,182.54, 950,932.47 and 402,647.20 is: 555,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,182.54 : 950,932.47 = 402,647.20 : x
  2. Step 2: Convert to fraction form
    689,182.54/950,932.47 = 402,647.20/x
  3. Step 3: Cross multiply
    689,182.54x = 950,932.47 × 402,647.20
  4. Step 4: Simplify right side
    689,182.54x = 382,890,296,434.58
  5. Step 5: Solve for x
    x = 382,890,296,434.58/689,182.54
  6. Step 6: Final answer
    x = 555,571.67

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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.