Home / 1,579,354.65-2,179,509.76-891,172.58

Finding the Fourth Proportional to 1,579,354.65, 2,179,509.76 and 891,172.58

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Solution

The fourth proportional to 1,579,354.65, 2,179,509.76 and 891,172.58 is: 1,229,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579,354.65 : 2,179,509.76 = 891,172.58 : x
  2. Step 2: Convert to fraction form
    1,579,354.65/2,179,509.76 = 891,172.58/x
  3. Step 3: Cross multiply
    1,579,354.65x = 2,179,509.76 × 891,172.58
  4. Step 4: Simplify right side
    1,579,354.65x = 1,942,319,335,954.38
  5. Step 5: Solve for x
    x = 1,942,319,335,954.38/1,579,354.65
  6. Step 6: Final answer
    x = 1,229,818.35

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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.