Home / 558,650.40-837,975.60-434,080.80

Finding the Fourth Proportional to 558,650.40, 837,975.60 and 434,080.80

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Solution

The fourth proportional to 558,650.40, 837,975.60 and 434,080.80 is: 651,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,650.40 : 837,975.60 = 434,080.80 : x
  2. Step 2: Convert to fraction form
    558,650.40/837,975.60 = 434,080.80/x
  3. Step 3: Cross multiply
    558,650.40x = 837,975.60 × 434,080.80
  4. Step 4: Simplify right side
    558,650.40x = 363,749,118,828.48
  5. Step 5: Solve for x
    x = 363,749,118,828.48/558,650.40
  6. Step 6: Final answer
    x = 651,121.20

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Double scale
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Similar ratio
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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.