Home / 457,055.28-630,720.48-253,114.69

Finding the Fourth Proportional to 457,055.28, 630,720.48 and 253,114.69

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Solution

The fourth proportional to 457,055.28, 630,720.48 and 253,114.69 is: 349,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,055.28 : 630,720.48 = 253,114.69 : x
  2. Step 2: Convert to fraction form
    457,055.28/630,720.48 = 253,114.69/x
  3. Step 3: Cross multiply
    457,055.28x = 630,720.48 × 253,114.69
  4. Step 4: Simplify right side
    457,055.28x = 159,644,619,085.66
  5. Step 5: Solve for x
    x = 159,644,619,085.66/457,055.28
  6. Step 6: Final answer
    x = 349,289.52

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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.