Home / 1,217,851.84-1,680,074.80-788,270

Finding the Fourth Proportional to 1,217,851.84, 1,680,074.80 and 788,270

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Solution

The fourth proportional to 1,217,851.84, 1,680,074.80 and 788,270 is: 1,087,449.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,851.84 : 1,680,074.80 = 788,270 : x
  2. Step 2: Convert to fraction form
    1,217,851.84/1,680,074.80 = 788,270/x
  3. Step 3: Cross multiply
    1,217,851.84x = 1,680,074.80 × 788,270
  4. Step 4: Simplify right side
    1,217,851.84x = 1,324,352,562,596
  5. Step 5: Solve for x
    x = 1,324,352,562,596/1,217,851.84
  6. Step 6: Final answer
    x = 1,087,449.65

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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.