Home / 1,119,916.40-1,680,263.40-489,023.60

Finding the Fourth Proportional to 1,119,916.40, 1,680,263.40 and 489,023.60

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Solution

The fourth proportional to 1,119,916.40, 1,680,263.40 and 489,023.60 is: 733,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,916.40 : 1,680,263.40 = 489,023.60 : x
  2. Step 2: Convert to fraction form
    1,119,916.40/1,680,263.40 = 489,023.60/x
  3. Step 3: Cross multiply
    1,119,916.40x = 1,680,263.40 × 489,023.60
  4. Step 4: Simplify right side
    1,119,916.40x = 821,688,456,816.24
  5. Step 5: Solve for x
    x = 821,688,456,816.24/1,119,916.40
  6. Step 6: Final answer
    x = 733,705.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.