Home / 456,719.16-630,280.32-252,786.90

Finding the Fourth Proportional to 456,719.16, 630,280.32 and 252,786.90

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Solution

The fourth proportional to 456,719.16, 630,280.32 and 252,786.90 is: 348,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,719.16 : 630,280.32 = 252,786.90 : x
  2. Step 2: Convert to fraction form
    456,719.16/630,280.32 = 252,786.90/x
  3. Step 3: Cross multiply
    456,719.16x = 630,280.32 × 252,786.90
  4. Step 4: Simplify right side
    456,719.16x = 159,326,608,223.81
  5. Step 5: Solve for x
    x = 159,326,608,223.81/456,719.16
  6. Step 6: Final answer
    x = 348,850.28

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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.