Home / 2,118,945.12-3,178,347.28-920,868.60

Finding the Fourth Proportional to 2,118,945.12, 3,178,347.28 and 920,868.60

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Solution

The fourth proportional to 2,118,945.12, 3,178,347.28 and 920,868.60 is: 1,381,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,945.12 : 3,178,347.28 = 920,868.60 : x
  2. Step 2: Convert to fraction form
    2,118,945.12/3,178,347.28 = 920,868.60/x
  3. Step 3: Cross multiply
    2,118,945.12x = 3,178,347.28 × 920,868.60
  4. Step 4: Simplify right side
    2,118,945.12x = 2,926,840,210,047.41
  5. Step 5: Solve for x
    x = 2,926,840,210,047.41/2,118,945.12
  6. Step 6: Final answer
    x = 1,381,272.30

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1.5x scale

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.