Home / 2,688,425.40-4,037,303.70-1,428,713.40

Finding the Fourth Proportional to 2,688,425.40, 4,037,303.70 and 1,428,713.40

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Solution

The fourth proportional to 2,688,425.40, 4,037,303.70 and 1,428,713.40 is: 2,145,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,425.40 : 4,037,303.70 = 1,428,713.40 : x
  2. Step 2: Convert to fraction form
    2,688,425.40/4,037,303.70 = 1,428,713.40/x
  3. Step 3: Cross multiply
    2,688,425.40x = 4,037,303.70 × 1,428,713.40
  4. Step 4: Simplify right side
    2,688,425.40x = 5,768,149,896,059.58
  5. Step 5: Solve for x
    x = 5,768,149,896,059.58/2,688,425.40
  6. Step 6: Final answer
    x = 2,145,549.55

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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.