Home / 1,615,281.20-2,420,005.80-940,810.40

Finding the Fourth Proportional to 1,615,281.20, 2,420,005.80 and 940,810.40

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Solution

The fourth proportional to 1,615,281.20, 2,420,005.80 and 940,810.40 is: 1,409,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,281.20 : 2,420,005.80 = 940,810.40 : x
  2. Step 2: Convert to fraction form
    1,615,281.20/2,420,005.80 = 940,810.40/x
  3. Step 3: Cross multiply
    1,615,281.20x = 2,420,005.80 × 940,810.40
  4. Step 4: Simplify right side
    1,615,281.20x = 2,276,766,624,700.32
  5. Step 5: Solve for x
    x = 2,276,766,624,700.32/1,615,281.20
  6. Step 6: Final answer
    x = 1,409,517.19

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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.