Home / 897,798.24-1,238,954.40-489,890.88

Finding the Fourth Proportional to 897,798.24, 1,238,954.40 and 489,890.88

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Solution

The fourth proportional to 897,798.24, 1,238,954.40 and 489,890.88 is: 676,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,798.24 : 1,238,954.40 = 489,890.88 : x
  2. Step 2: Convert to fraction form
    897,798.24/1,238,954.40 = 489,890.88/x
  3. Step 3: Cross multiply
    897,798.24x = 1,238,954.40 × 489,890.88
  4. Step 4: Simplify right side
    897,798.24x = 606,952,461,295.87
  5. Step 5: Solve for x
    x = 606,952,461,295.87/897,798.24
  6. Step 6: Final answer
    x = 676,045.50

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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.