Home / 1,578,824-2,178,828.96-863,432

Finding the Fourth Proportional to 1,578,824, 2,178,828.96 and 863,432

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Solution

The fourth proportional to 1,578,824, 2,178,828.96 and 863,432 is: 1,191,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,824 : 2,178,828.96 = 863,432 : x
  2. Step 2: Convert to fraction form
    1,578,824/2,178,828.96 = 863,432/x
  3. Step 3: Cross multiply
    1,578,824x = 2,178,828.96 × 863,432
  4. Step 4: Simplify right side
    1,578,824x = 1,881,270,646,590.72
  5. Step 5: Solve for x
    x = 1,881,270,646,590.72/1,578,824
  6. Step 6: Final answer
    x = 1,191,564.51

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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.