Home / 811,187.80-1,214,448.90-496,259.80

Finding the Fourth Proportional to 811,187.80, 1,214,448.90 and 496,259.80

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Solution

The fourth proportional to 811,187.80, 1,214,448.90 and 496,259.80 is: 742,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,187.80 : 1,214,448.90 = 496,259.80 : x
  2. Step 2: Convert to fraction form
    811,187.80/1,214,448.90 = 496,259.80/x
  3. Step 3: Cross multiply
    811,187.80x = 1,214,448.90 × 496,259.80
  4. Step 4: Simplify right side
    811,187.80x = 602,682,168,224.22
  5. Step 5: Solve for x
    x = 602,682,168,224.22/811,187.80
  6. Step 6: Final answer
    x = 742,962.56

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Double scale
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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.