Home / 714,940.40-1,072,410.60-360,646.40

Finding the Fourth Proportional to 714,940.40, 1,072,410.60 and 360,646.40

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Solution

The fourth proportional to 714,940.40, 1,072,410.60 and 360,646.40 is: 540,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,940.40 : 1,072,410.60 = 360,646.40 : x
  2. Step 2: Convert to fraction form
    714,940.40/1,072,410.60 = 360,646.40/x
  3. Step 3: Cross multiply
    714,940.40x = 1,072,410.60 × 360,646.40
  4. Step 4: Simplify right side
    714,940.40x = 386,761,022,211.84
  5. Step 5: Solve for x
    x = 386,761,022,211.84/714,940.40
  6. Step 6: Final answer
    x = 540,969.60

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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.