Home / 758,653.13-1,137,825.23-278,715.98

Finding the Fourth Proportional to 758,653.13, 1,137,825.23 and 278,715.98

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Solution

The fourth proportional to 758,653.13, 1,137,825.23 and 278,715.98 is: 418,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,653.13 : 1,137,825.23 = 278,715.98 : x
  2. Step 2: Convert to fraction form
    758,653.13/1,137,825.23 = 278,715.98/x
  3. Step 3: Cross multiply
    758,653.13x = 1,137,825.23 × 278,715.98
  4. Step 4: Simplify right side
    758,653.13x = 317,130,066,965.47
  5. Step 5: Solve for x
    x = 317,130,066,965.47/758,653.13
  6. Step 6: Final answer
    x = 418,017.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.