Home / 778,997.65-1,075,012.68-434,813.67

Finding the Fourth Proportional to 778,997.65, 1,075,012.68 and 434,813.67

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Solution

The fourth proportional to 778,997.65, 1,075,012.68 and 434,813.67 is: 600,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,997.65 : 1,075,012.68 = 434,813.67 : x
  2. Step 2: Convert to fraction form
    778,997.65/1,075,012.68 = 434,813.67/x
  3. Step 3: Cross multiply
    778,997.65x = 1,075,012.68 × 434,813.67
  4. Step 4: Simplify right side
    778,997.65x = 467,430,204,912.77
  5. Step 5: Solve for x
    x = 467,430,204,912.77/778,997.65
  6. Step 6: Final answer
    x = 600,040.58

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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.