Home / 579,632.80-869,881.20-299,005.60

Finding the Fourth Proportional to 579,632.80, 869,881.20 and 299,005.60

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Solution

The fourth proportional to 579,632.80, 869,881.20 and 299,005.60 is: 448,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,632.80 : 869,881.20 = 299,005.60 : x
  2. Step 2: Convert to fraction form
    579,632.80/869,881.20 = 299,005.60/x
  3. Step 3: Cross multiply
    579,632.80x = 869,881.20 × 299,005.60
  4. Step 4: Simplify right side
    579,632.80x = 260,099,350,134.72
  5. Step 5: Solve for x
    x = 260,099,350,134.72/579,632.80
  6. Step 6: Final answer
    x = 448,731.25

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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.