Home / 919,669.96-1,377,511.12-445,360.69

Finding the Fourth Proportional to 919,669.96, 1,377,511.12 and 445,360.69

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Solution

The fourth proportional to 919,669.96, 1,377,511.12 and 445,360.69 is: 667,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,669.96 : 1,377,511.12 = 445,360.69 : x
  2. Step 2: Convert to fraction form
    919,669.96/1,377,511.12 = 445,360.69/x
  3. Step 3: Cross multiply
    919,669.96x = 1,377,511.12 × 445,360.69
  4. Step 4: Simplify right side
    919,669.96x = 613,489,298,328.69
  5. Step 5: Solve for x
    x = 613,489,298,328.69/919,669.96
  6. Step 6: Final answer
    x = 667,075.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.