Home / 788,240.94-1,087,382.79-465,795.06

Finding the Fourth Proportional to 788,240.94, 1,087,382.79 and 465,795.06

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Solution

The fourth proportional to 788,240.94, 1,087,382.79 and 465,795.06 is: 642,566.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,240.94 : 1,087,382.79 = 465,795.06 : x
  2. Step 2: Convert to fraction form
    788,240.94/1,087,382.79 = 465,795.06/x
  3. Step 3: Cross multiply
    788,240.94x = 1,087,382.79 × 465,795.06
  4. Step 4: Simplify right side
    788,240.94x = 506,497,531,911.02
  5. Step 5: Solve for x
    x = 506,497,531,911.02/788,240.94
  6. Step 6: Final answer
    x = 642,566.89

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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.