Home / 446,822.60-670,233.90-257,865.80

Finding the Fourth Proportional to 446,822.60, 670,233.90 and 257,865.80

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Solution

The fourth proportional to 446,822.60, 670,233.90 and 257,865.80 is: 386,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,822.60 : 670,233.90 = 257,865.80 : x
  2. Step 2: Convert to fraction form
    446,822.60/670,233.90 = 257,865.80/x
  3. Step 3: Cross multiply
    446,822.60x = 670,233.90 × 257,865.80
  4. Step 4: Simplify right side
    446,822.60x = 172,830,400,810.62
  5. Step 5: Solve for x
    x = 172,830,400,810.62/446,822.60
  6. Step 6: Final answer
    x = 386,798.70

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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.