Home / 770,845.88-1,063,064.45-661,916.00

Finding the Fourth Proportional to 770,845.88, 1,063,064.45 and 661,916.00

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Solution

The fourth proportional to 770,845.88, 1,063,064.45 and 661,916.00 is: 912,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,845.88 : 1,063,064.45 = 661,916.00 : x
  2. Step 2: Convert to fraction form
    770,845.88/1,063,064.45 = 661,916.00/x
  3. Step 3: Cross multiply
    770,845.88x = 1,063,064.45 × 661,916.00
  4. Step 4: Simplify right side
    770,845.88x = 703,659,372,798.65
  5. Step 5: Solve for x
    x = 703,659,372,798.65/770,845.88
  6. Step 6: Final answer
    x = 912,840.54

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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.