Home / 2,986,693.60-4,480,040.40-1,638,335.20

Finding the Fourth Proportional to 2,986,693.60, 4,480,040.40 and 1,638,335.20

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Solution

The fourth proportional to 2,986,693.60, 4,480,040.40 and 1,638,335.20 is: 2,457,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,693.60 : 4,480,040.40 = 1,638,335.20 : x
  2. Step 2: Convert to fraction form
    2,986,693.60/4,480,040.40 = 1,638,335.20/x
  3. Step 3: Cross multiply
    2,986,693.60x = 4,480,040.40 × 1,638,335.20
  4. Step 4: Simplify right side
    2,986,693.60x = 7,339,807,884,742.08
  5. Step 5: Solve for x
    x = 7,339,807,884,742.08/2,986,693.60
  6. Step 6: Final answer
    x = 2,457,502.80

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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.