Home / 403,719.81-557,091.59-248,646.39

Finding the Fourth Proportional to 403,719.81, 557,091.59 and 248,646.39

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Solution

The fourth proportional to 403,719.81, 557,091.59 and 248,646.39 is: 343,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,719.81 : 557,091.59 = 248,646.39 : x
  2. Step 2: Convert to fraction form
    403,719.81/557,091.59 = 248,646.39/x
  3. Step 3: Cross multiply
    403,719.81x = 557,091.59 × 248,646.39
  4. Step 4: Simplify right side
    403,719.81x = 138,518,811,509.63
  5. Step 5: Solve for x
    x = 138,518,811,509.63/403,719.81
  6. Step 6: Final answer
    x = 343,106.30

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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.