Home / 897,137.16-1,238,048.34-489,239.82

Finding the Fourth Proportional to 897,137.16, 1,238,048.34 and 489,239.82

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Solution

The fourth proportional to 897,137.16, 1,238,048.34 and 489,239.82 is: 675,150.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,137.16 : 1,238,048.34 = 489,239.82 : x
  2. Step 2: Convert to fraction form
    897,137.16/1,238,048.34 = 489,239.82/x
  3. Step 3: Cross multiply
    897,137.16x = 1,238,048.34 × 489,239.82
  4. Step 4: Simplify right side
    897,137.16x = 605,702,547,012.90
  5. Step 5: Solve for x
    x = 605,702,547,012.90/897,137.16
  6. Step 6: Final answer
    x = 675,150.44

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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.