Home / 1,289,010.87-1,778,637.54-745,041.87

Finding the Fourth Proportional to 1,289,010.87, 1,778,637.54 and 745,041.87

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Solution

The fourth proportional to 1,289,010.87, 1,778,637.54 and 745,041.87 is: 1,028,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,010.87 : 1,778,637.54 = 745,041.87 : x
  2. Step 2: Convert to fraction form
    1,289,010.87/1,778,637.54 = 745,041.87/x
  3. Step 3: Cross multiply
    1,289,010.87x = 1,778,637.54 × 745,041.87
  4. Step 4: Simplify right side
    1,289,010.87x = 1,325,159,438,853.80
  5. Step 5: Solve for x
    x = 1,325,159,438,853.80/1,289,010.87
  6. Step 6: Final answer
    x = 1,028,043.65

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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.