Home / 427,385.60-589,606.80-257,523.20

Finding the Fourth Proportional to 427,385.60, 589,606.80 and 257,523.20

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Solution

The fourth proportional to 427,385.60, 589,606.80 and 257,523.20 is: 355,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,385.60 : 589,606.80 = 257,523.20 : x
  2. Step 2: Convert to fraction form
    427,385.60/589,606.80 = 257,523.20/x
  3. Step 3: Cross multiply
    427,385.60x = 589,606.80 × 257,523.20
  4. Step 4: Simplify right side
    427,385.60x = 151,837,429,877.76
  5. Step 5: Solve for x
    x = 151,837,429,877.76/427,385.60
  6. Step 6: Final answer
    x = 355,270.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.