Home / 1,431,828.84-1,975,882.02-787,248.36

Finding the Fourth Proportional to 1,431,828.84, 1,975,882.02 and 787,248.36

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Solution

The fourth proportional to 1,431,828.84, 1,975,882.02 and 787,248.36 is: 1,086,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,828.84 : 1,975,882.02 = 787,248.36 : x
  2. Step 2: Convert to fraction form
    1,431,828.84/1,975,882.02 = 787,248.36/x
  3. Step 3: Cross multiply
    1,431,828.84x = 1,975,882.02 × 787,248.36
  4. Step 4: Simplify right side
    1,431,828.84x = 1,555,509,879,798.49
  5. Step 5: Solve for x
    x = 1,555,509,879,798.49/1,431,828.84
  6. Step 6: Final answer
    x = 1,086,379.77

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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.