Home / 571,345.81-788,452.16-313,218.05

Finding the Fourth Proportional to 571,345.81, 788,452.16 and 313,218.05

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Solution

The fourth proportional to 571,345.81, 788,452.16 and 313,218.05 is: 432,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,345.81 : 788,452.16 = 313,218.05 : x
  2. Step 2: Convert to fraction form
    571,345.81/788,452.16 = 313,218.05/x
  3. Step 3: Cross multiply
    571,345.81x = 788,452.16 × 313,218.05
  4. Step 4: Simplify right side
    571,345.81x = 246,957,442,565.14
  5. Step 5: Solve for x
    x = 246,957,442,565.14/571,345.81
  6. Step 6: Final answer
    x = 432,238.13

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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.