Home / 401,275.80-553,830.95-304,799

Finding the Fourth Proportional to 401,275.80, 553,830.95 and 304,799

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Solution

The fourth proportional to 401,275.80, 553,830.95 and 304,799 is: 420,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,275.80 : 553,830.95 = 304,799 : x
  2. Step 2: Convert to fraction form
    401,275.80/553,830.95 = 304,799/x
  3. Step 3: Cross multiply
    401,275.80x = 553,830.95 × 304,799
  4. Step 4: Simplify right side
    401,275.80x = 168,807,119,729.05
  5. Step 5: Solve for x
    x = 168,807,119,729.05/401,275.80
  6. Step 6: Final answer
    x = 420,676.05

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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.