Home / 905,688.40-1,358,532.60-807,710.80

Finding the Fourth Proportional to 905,688.40, 1,358,532.60 and 807,710.80

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Solution

The fourth proportional to 905,688.40, 1,358,532.60 and 807,710.80 is: 1,211,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,688.40 : 1,358,532.60 = 807,710.80 : x
  2. Step 2: Convert to fraction form
    905,688.40/1,358,532.60 = 807,710.80/x
  3. Step 3: Cross multiply
    905,688.40x = 1,358,532.60 × 807,710.80
  4. Step 4: Simplify right side
    905,688.40x = 1,097,301,453,172.08
  5. Step 5: Solve for x
    x = 1,097,301,453,172.08/905,688.40
  6. Step 6: Final answer
    x = 1,211,566.20

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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.