Home / 631,437.16-947,505.66-257,431.24

Finding the Fourth Proportional to 631,437.16, 947,505.66 and 257,431.24

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Solution

The fourth proportional to 631,437.16, 947,505.66 and 257,431.24 is: 386,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,437.16 : 947,505.66 = 257,431.24 : x
  2. Step 2: Convert to fraction form
    631,437.16/947,505.66 = 257,431.24/x
  3. Step 3: Cross multiply
    631,437.16x = 947,505.66 × 257,431.24
  4. Step 4: Simplify right side
    631,437.16x = 243,917,556,960.82
  5. Step 5: Solve for x
    x = 243,917,556,960.82/631,437.16
  6. Step 6: Final answer
    x = 386,289.52

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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.