Home / 3,128,025.40-4,692,038.10-1,330,457.20

Finding the Fourth Proportional to 3,128,025.40, 4,692,038.10 and 1,330,457.20

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Solution

The fourth proportional to 3,128,025.40, 4,692,038.10 and 1,330,457.20 is: 1,995,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,025.40 : 4,692,038.10 = 1,330,457.20 : x
  2. Step 2: Convert to fraction form
    3,128,025.40/4,692,038.10 = 1,330,457.20/x
  3. Step 3: Cross multiply
    3,128,025.40x = 4,692,038.10 × 1,330,457.20
  4. Step 4: Simplify right side
    3,128,025.40x = 6,242,555,872,819.32
  5. Step 5: Solve for x
    x = 6,242,555,872,819.32/3,128,025.40
  6. Step 6: Final answer
    x = 1,995,685.80

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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.