Home / 670,738.60-1,007,274.30-355,810.60

Finding the Fourth Proportional to 670,738.60, 1,007,274.30 and 355,810.60

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Solution

The fourth proportional to 670,738.60, 1,007,274.30 and 355,810.60 is: 534,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,738.60 : 1,007,274.30 = 355,810.60 : x
  2. Step 2: Convert to fraction form
    670,738.60/1,007,274.30 = 355,810.60/x
  3. Step 3: Cross multiply
    670,738.60x = 1,007,274.30 × 355,810.60
  4. Step 4: Simplify right side
    670,738.60x = 358,398,873,047.58
  5. Step 5: Solve for x
    x = 358,398,873,047.58/670,738.60
  6. Step 6: Final answer
    x = 534,334.65

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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.