Home / 876,124.40-1,313,668.20-456,220.40

Finding the Fourth Proportional to 876,124.40, 1,313,668.20 and 456,220.40

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Solution

The fourth proportional to 876,124.40, 1,313,668.20 and 456,220.40 is: 684,060.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,124.40 : 1,313,668.20 = 456,220.40 : x
  2. Step 2: Convert to fraction form
    876,124.40/1,313,668.20 = 456,220.40/x
  3. Step 3: Cross multiply
    876,124.40x = 1,313,668.20 × 456,220.40
  4. Step 4: Simplify right side
    876,124.40x = 599,322,231,671.28
  5. Step 5: Solve for x
    x = 599,322,231,671.28/876,124.40
  6. Step 6: Final answer
    x = 684,060.66

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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.