Home / 682,624.13-942,021.70-380,818.13

Finding the Fourth Proportional to 682,624.13, 942,021.70 and 380,818.13

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Solution

The fourth proportional to 682,624.13, 942,021.70 and 380,818.13 is: 525,529.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,624.13 : 942,021.70 = 380,818.13 : x
  2. Step 2: Convert to fraction form
    682,624.13/942,021.70 = 380,818.13/x
  3. Step 3: Cross multiply
    682,624.13x = 942,021.70 × 380,818.13
  4. Step 4: Simplify right side
    682,624.13x = 358,738,936,551.27
  5. Step 5: Solve for x
    x = 358,738,936,551.27/682,624.13
  6. Step 6: Final answer
    x = 525,529.24

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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.