Home / 841,406.60-1,262,117.10-280,441.10

Finding the Fourth Proportional to 841,406.60, 1,262,117.10 and 280,441.10

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Solution

The fourth proportional to 841,406.60, 1,262,117.10 and 280,441.10 is: 420,664.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,406.60 : 1,262,117.10 = 280,441.10 : x
  2. Step 2: Convert to fraction form
    841,406.60/1,262,117.10 = 280,441.10/x
  3. Step 3: Cross multiply
    841,406.60x = 1,262,117.10 × 280,441.10
  4. Step 4: Simplify right side
    841,406.60x = 353,949,507,852.81
  5. Step 5: Solve for x
    x = 353,949,507,852.81/841,406.60
  6. Step 6: Final answer
    x = 420,664.05

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1.5x scale

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.