Home / 1,230,438.96-1,845,646.92-388,990.80

Finding the Fourth Proportional to 1,230,438.96, 1,845,646.92 and 388,990.80

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Solution

The fourth proportional to 1,230,438.96, 1,845,646.92 and 388,990.80 is: 583,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,438.96 : 1,845,646.92 = 388,990.80 : x
  2. Step 2: Convert to fraction form
    1,230,438.96/1,845,646.92 = 388,990.80/x
  3. Step 3: Cross multiply
    1,230,438.96x = 1,845,646.92 × 388,990.80
  4. Step 4: Simplify right side
    1,230,438.96x = 717,939,671,928.34
  5. Step 5: Solve for x
    x = 717,939,671,928.34/1,230,438.96
  6. Step 6: Final answer
    x = 583,482.56

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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.