Home / 1,611,140.80-2,417,056.80-489,323.20

Finding the Fourth Proportional to 1,611,140.80, 2,417,056.80 and 489,323.20

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Solution

The fourth proportional to 1,611,140.80, 2,417,056.80 and 489,323.20 is: 734,089.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,140.80 : 2,417,056.80 = 489,323.20 : x
  2. Step 2: Convert to fraction form
    1,611,140.80/2,417,056.80 = 489,323.20/x
  3. Step 3: Cross multiply
    1,611,140.80x = 2,417,056.80 × 489,323.20
  4. Step 4: Simplify right side
    1,611,140.80x = 1,182,721,967,957.76
  5. Step 5: Solve for x
    x = 1,182,721,967,957.76/1,611,140.80
  6. Step 6: Final answer
    x = 734,089.76

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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.