Home / 891,284.94-1,230,130.44-528,908.67

Finding the Fourth Proportional to 891,284.94, 1,230,130.44 and 528,908.67

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Solution

The fourth proportional to 891,284.94, 1,230,130.44 and 528,908.67 is: 729,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,284.94 : 1,230,130.44 = 528,908.67 : x
  2. Step 2: Convert to fraction form
    891,284.94/1,230,130.44 = 528,908.67/x
  3. Step 3: Cross multiply
    891,284.94x = 1,230,130.44 × 528,908.67
  4. Step 4: Simplify right side
    891,284.94x = 650,626,654,946.92
  5. Step 5: Solve for x
    x = 650,626,654,946.92/891,284.94
  6. Step 6: Final answer
    x = 729,987.26

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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.