Home / 1,289,208.17-1,779,002.97-745,378.85

Finding the Fourth Proportional to 1,289,208.17, 1,779,002.97 and 745,378.85

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Solution

The fourth proportional to 1,289,208.17, 1,779,002.97 and 745,378.85 is: 1,028,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,208.17 : 1,779,002.97 = 745,378.85 : x
  2. Step 2: Convert to fraction form
    1,289,208.17/1,779,002.97 = 745,378.85/x
  3. Step 3: Cross multiply
    1,289,208.17x = 1,779,002.97 × 745,378.85
  4. Step 4: Simplify right side
    1,289,208.17x = 1,326,031,187,925.18
  5. Step 5: Solve for x
    x = 1,326,031,187,925.18/1,289,208.17
  6. Step 6: Final answer
    x = 1,028,562.51

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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.