Home / 985,376.69-1,477,605.75-511,934.93

Finding the Fourth Proportional to 985,376.69, 1,477,605.75 and 511,934.93

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Solution

The fourth proportional to 985,376.69, 1,477,605.75 and 511,934.93 is: 767,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,376.69 : 1,477,605.75 = 511,934.93 : x
  2. Step 2: Convert to fraction form
    985,376.69/1,477,605.75 = 511,934.93/x
  3. Step 3: Cross multiply
    985,376.69x = 1,477,605.75 × 511,934.93
  4. Step 4: Simplify right side
    985,376.69x = 756,437,996,193.85
  5. Step 5: Solve for x
    x = 756,437,996,193.85/985,376.69
  6. Step 6: Final answer
    x = 767,663.78

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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.