Home / 874,733.76-1,312,515.36-520,447.68

Finding the Fourth Proportional to 874,733.76, 1,312,515.36 and 520,447.68

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Solution

The fourth proportional to 874,733.76, 1,312,515.36 and 520,447.68 is: 780,918.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,733.76 : 1,312,515.36 = 520,447.68 : x
  2. Step 2: Convert to fraction form
    874,733.76/1,312,515.36 = 520,447.68/x
  3. Step 3: Cross multiply
    874,733.76x = 1,312,515.36 × 520,447.68
  4. Step 4: Simplify right side
    874,733.76x = 683,095,574,076.37
  5. Step 5: Solve for x
    x = 683,095,574,076.37/874,733.76
  6. Step 6: Final answer
    x = 780,918.27

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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.