Home / 876,029.80-1,313,660.70-402,557.80

Finding the Fourth Proportional to 876,029.80, 1,313,660.70 and 402,557.80

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Solution

The fourth proportional to 876,029.80, 1,313,660.70 and 402,557.80 is: 603,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,029.80 : 1,313,660.70 = 402,557.80 : x
  2. Step 2: Convert to fraction form
    876,029.80/1,313,660.70 = 402,557.80/x
  3. Step 3: Cross multiply
    876,029.80x = 1,313,660.70 × 402,557.80
  4. Step 4: Simplify right side
    876,029.80x = 528,824,361,338.46
  5. Step 5: Solve for x
    x = 528,824,361,338.46/876,029.80
  6. Step 6: Final answer
    x = 603,660.24

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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.