Home / 638,829.02-958,669.64-331,364.36

Finding the Fourth Proportional to 638,829.02, 958,669.64 and 331,364.36

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Solution

The fourth proportional to 638,829.02, 958,669.64 and 331,364.36 is: 497,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,829.02 : 958,669.64 = 331,364.36 : x
  2. Step 2: Convert to fraction form
    638,829.02/958,669.64 = 331,364.36/x
  3. Step 3: Cross multiply
    638,829.02x = 958,669.64 × 331,364.36
  4. Step 4: Simplify right side
    638,829.02x = 317,668,945,259.86
  5. Step 5: Solve for x
    x = 317,668,945,259.86/638,829.02
  6. Step 6: Final answer
    x = 497,267.56

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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.