Home / 877,171.40-1,210,367.69-489,939.11

Finding the Fourth Proportional to 877,171.40, 1,210,367.69 and 489,939.11

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Solution

The fourth proportional to 877,171.40, 1,210,367.69 and 489,939.11 is: 676,044.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,171.40 : 1,210,367.69 = 489,939.11 : x
  2. Step 2: Convert to fraction form
    877,171.40/1,210,367.69 = 489,939.11/x
  3. Step 3: Cross multiply
    877,171.40x = 1,210,367.69 × 489,939.11
  4. Step 4: Simplify right side
    877,171.40x = 593,006,460,309.82
  5. Step 5: Solve for x
    x = 593,006,460,309.82/877,171.40
  6. Step 6: Final answer
    x = 676,044.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.