Home / 897,377.45-1,238,384.79-489,488.04

Finding the Fourth Proportional to 897,377.45, 1,238,384.79 and 489,488.04

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Solution

The fourth proportional to 897,377.45, 1,238,384.79 and 489,488.04 is: 675,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,377.45 : 1,238,384.79 = 489,488.04 : x
  2. Step 2: Convert to fraction form
    897,377.45/1,238,384.79 = 489,488.04/x
  3. Step 3: Cross multiply
    897,377.45x = 1,238,384.79 × 489,488.04
  4. Step 4: Simplify right side
    897,377.45x = 606,174,543,622.91
  5. Step 5: Solve for x
    x = 606,174,543,622.91/897,377.45
  6. Step 6: Final answer
    x = 675,495.63

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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.