Home / 579,615.36-869,673.33-313,563.30

Finding the Fourth Proportional to 579,615.36, 869,673.33 and 313,563.30

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Solution

The fourth proportional to 579,615.36, 869,673.33 and 313,563.30 is: 470,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,615.36 : 869,673.33 = 313,563.30 : x
  2. Step 2: Convert to fraction form
    579,615.36/869,673.33 = 313,563.30/x
  3. Step 3: Cross multiply
    579,615.36x = 869,673.33 × 313,563.30
  4. Step 4: Simplify right side
    579,615.36x = 272,697,639,276.79
  5. Step 5: Solve for x
    x = 272,697,639,276.79/579,615.36
  6. Step 6: Final answer
    x = 470,480.35

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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.