Home / 915,784.53-1,263,858.30-508,017.84

Finding the Fourth Proportional to 915,784.53, 1,263,858.30 and 508,017.84

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Solution

The fourth proportional to 915,784.53, 1,263,858.30 and 508,017.84 is: 701,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,784.53 : 1,263,858.30 = 508,017.84 : x
  2. Step 2: Convert to fraction form
    915,784.53/1,263,858.30 = 508,017.84/x
  3. Step 3: Cross multiply
    915,784.53x = 1,263,858.30 × 508,017.84
  4. Step 4: Simplify right side
    915,784.53x = 642,062,563,632.07
  5. Step 5: Solve for x
    x = 642,062,563,632.07/915,784.53
  6. Step 6: Final answer
    x = 701,106.58

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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.