Home / 1,402,305.20-2,103,457.80-842,433.20

Finding the Fourth Proportional to 1,402,305.20, 2,103,457.80 and 842,433.20

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Solution

The fourth proportional to 1,402,305.20, 2,103,457.80 and 842,433.20 is: 1,263,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,305.20 : 2,103,457.80 = 842,433.20 : x
  2. Step 2: Convert to fraction form
    1,402,305.20/2,103,457.80 = 842,433.20/x
  3. Step 3: Cross multiply
    1,402,305.20x = 2,103,457.80 × 842,433.20
  4. Step 4: Simplify right side
    1,402,305.20x = 1,772,022,685,518.96
  5. Step 5: Solve for x
    x = 1,772,022,685,518.96/1,402,305.20
  6. Step 6: Final answer
    x = 1,263,649.80

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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.