Home / 910,368.22-1,256,733.24-528,321.16

Finding the Fourth Proportional to 910,368.22, 1,256,733.24 and 528,321.16

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Solution

The fourth proportional to 910,368.22, 1,256,733.24 and 528,321.16 is: 729,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,368.22 : 1,256,733.24 = 528,321.16 : x
  2. Step 2: Convert to fraction form
    910,368.22/1,256,733.24 = 528,321.16/x
  3. Step 3: Cross multiply
    910,368.22x = 1,256,733.24 × 528,321.16
  4. Step 4: Simplify right side
    910,368.22x = 663,958,763,167.36
  5. Step 5: Solve for x
    x = 663,958,763,167.36/910,368.22
  6. Step 6: Final answer
    x = 729,329.90

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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.