Home / 579,739.20-869,176.80-299,457.60

Finding the Fourth Proportional to 579,739.20, 869,176.80 and 299,457.60

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Solution

The fourth proportional to 579,739.20, 869,176.80 and 299,457.60 is: 448,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,739.20 : 869,176.80 = 299,457.60 : x
  2. Step 2: Convert to fraction form
    579,739.20/869,176.80 = 299,457.60/x
  3. Step 3: Cross multiply
    579,739.20x = 869,176.80 × 299,457.60
  4. Step 4: Simplify right side
    579,739.20x = 260,281,598,503.68
  5. Step 5: Solve for x
    x = 260,281,598,503.68/579,739.20
  6. Step 6: Final answer
    x = 448,963.26

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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.