Home / 984,855.51-1,476,692.78-478,419.21

Finding the Fourth Proportional to 984,855.51, 1,476,692.78 and 478,419.21

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Solution

The fourth proportional to 984,855.51, 1,476,692.78 and 478,419.21 is: 717,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,855.51 : 1,476,692.78 = 478,419.21 : x
  2. Step 2: Convert to fraction form
    984,855.51/1,476,692.78 = 478,419.21/x
  3. Step 3: Cross multiply
    984,855.51x = 1,476,692.78 × 478,419.21
  4. Step 4: Simplify right side
    984,855.51x = 706,478,190,828.21
  5. Step 5: Solve for x
    x = 706,478,190,828.21/984,855.51
  6. Step 6: Final answer
    x = 717,341.97

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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.