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Finding the Fourth Proportional to 810,392.04, 1,215,603.72 and 249,426

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Solution

The fourth proportional to 810,392.04, 1,215,603.72 and 249,426 is: 374,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,392.04 : 1,215,603.72 = 249,426 : x
  2. Step 2: Convert to fraction form
    810,392.04/1,215,603.72 = 249,426/x
  3. Step 3: Cross multiply
    810,392.04x = 1,215,603.72 × 249,426
  4. Step 4: Simplify right side
    810,392.04x = 303,203,173,464.72
  5. Step 5: Solve for x
    x = 303,203,173,464.72/810,392.04
  6. Step 6: Final answer
    x = 374,143.82

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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.