Home / 2,688,030.40-4,032,391.20-1,340,881.60

Finding the Fourth Proportional to 2,688,030.40, 4,032,391.20 and 1,340,881.60

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Solution

The fourth proportional to 2,688,030.40, 4,032,391.20 and 1,340,881.60 is: 2,011,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,030.40 : 4,032,391.20 = 1,340,881.60 : x
  2. Step 2: Convert to fraction form
    2,688,030.40/4,032,391.20 = 1,340,881.60/x
  3. Step 3: Cross multiply
    2,688,030.40x = 4,032,391.20 × 1,340,881.60
  4. Step 4: Simplify right side
    2,688,030.40x = 5,406,959,164,081.92
  5. Step 5: Solve for x
    x = 5,406,959,164,081.92/2,688,030.40
  6. Step 6: Final answer
    x = 2,011,494.80

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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.