Home / 811,927.89-1,217,558.88-243,108.63

Finding the Fourth Proportional to 811,927.89, 1,217,558.88 and 243,108.63

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Solution

The fourth proportional to 811,927.89, 1,217,558.88 and 243,108.63 is: 364,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,927.89 : 1,217,558.88 = 243,108.63 : x
  2. Step 2: Convert to fraction form
    811,927.89/1,217,558.88 = 243,108.63/x
  3. Step 3: Cross multiply
    811,927.89x = 1,217,558.88 × 243,108.63
  4. Step 4: Simplify right side
    811,927.89x = 295,999,071,261.13
  5. Step 5: Solve for x
    x = 295,999,071,261.13/811,927.89
  6. Step 6: Final answer
    x = 364,563.25

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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.