Home / 470,280.28-648,991.47-255,424.54

Finding the Fourth Proportional to 470,280.28, 648,991.47 and 255,424.54

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Solution

The fourth proportional to 470,280.28, 648,991.47 and 255,424.54 is: 352,488.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,280.28 : 648,991.47 = 255,424.54 : x
  2. Step 2: Convert to fraction form
    470,280.28/648,991.47 = 255,424.54/x
  3. Step 3: Cross multiply
    470,280.28x = 648,991.47 × 255,424.54
  4. Step 4: Simplify right side
    470,280.28x = 165,768,347,688.67
  5. Step 5: Solve for x
    x = 165,768,347,688.67/470,280.28
  6. Step 6: Final answer
    x = 352,488.41

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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.