Home / 816,505.81-1,126,802.47-448,963.90

Finding the Fourth Proportional to 816,505.81, 1,126,802.47 and 448,963.90

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Solution

The fourth proportional to 816,505.81, 1,126,802.47 and 448,963.90 is: 619,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,505.81 : 1,126,802.47 = 448,963.90 : x
  2. Step 2: Convert to fraction form
    816,505.81/1,126,802.47 = 448,963.90/x
  3. Step 3: Cross multiply
    816,505.81x = 1,126,802.47 × 448,963.90
  4. Step 4: Simplify right side
    816,505.81x = 505,893,631,460.83
  5. Step 5: Solve for x
    x = 505,893,631,460.83/816,505.81
  6. Step 6: Final answer
    x = 619,583.63

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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.