Home / 549,966.70-758,941.41-320,509.36

Finding the Fourth Proportional to 549,966.70, 758,941.41 and 320,509.36

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Solution

The fourth proportional to 549,966.70, 758,941.41 and 320,509.36 is: 442,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,966.70 : 758,941.41 = 320,509.36 : x
  2. Step 2: Convert to fraction form
    549,966.70/758,941.41 = 320,509.36/x
  3. Step 3: Cross multiply
    549,966.70x = 758,941.41 × 320,509.36
  4. Step 4: Simplify right side
    549,966.70x = 243,247,825,596.60
  5. Step 5: Solve for x
    x = 243,247,825,596.60/549,966.70
  6. Step 6: Final answer
    x = 442,295.55

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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.