Home / 403,646.12-556,989.80-248,572.78

Finding the Fourth Proportional to 403,646.12, 556,989.80 and 248,572.78

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Solution

The fourth proportional to 403,646.12, 556,989.80 and 248,572.78 is: 343,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,646.12 : 556,989.80 = 248,572.78 : x
  2. Step 2: Convert to fraction form
    403,646.12/556,989.80 = 248,572.78/x
  3. Step 3: Cross multiply
    403,646.12x = 556,989.80 × 248,572.78
  4. Step 4: Simplify right side
    403,646.12x = 138,452,503,017.64
  5. Step 5: Solve for x
    x = 138,452,503,017.64/403,646.12
  6. Step 6: Final answer
    x = 343,004.67

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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.