Home / 757,721.63-1,045,653.69-418,187.45

Finding the Fourth Proportional to 757,721.63, 1,045,653.69 and 418,187.45

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Solution

The fourth proportional to 757,721.63, 1,045,653.69 and 418,187.45 is: 577,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,721.63 : 1,045,653.69 = 418,187.45 : x
  2. Step 2: Convert to fraction form
    757,721.63/1,045,653.69 = 418,187.45/x
  3. Step 3: Cross multiply
    757,721.63x = 1,045,653.69 × 418,187.45
  4. Step 4: Simplify right side
    757,721.63x = 437,279,244,975.92
  5. Step 5: Solve for x
    x = 437,279,244,975.92/757,721.63
  6. Step 6: Final answer
    x = 577,097.49

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1.5x scale

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.