Home / 456,814.72-630,643.08-284,785.12

Finding the Fourth Proportional to 456,814.72, 630,643.08 and 284,785.12

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Solution

The fourth proportional to 456,814.72, 630,643.08 and 284,785.12 is: 393,152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,814.72 : 630,643.08 = 284,785.12 : x
  2. Step 2: Convert to fraction form
    456,814.72/630,643.08 = 284,785.12/x
  3. Step 3: Cross multiply
    456,814.72x = 630,643.08 × 284,785.12
  4. Step 4: Simplify right side
    456,814.72x = 179,597,765,214.97
  5. Step 5: Solve for x
    x = 179,597,765,214.97/456,814.72
  6. Step 6: Final answer
    x = 393,152.32

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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.