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Finding the Fourth Proportional to 626,509.12, 864,590.88 and 340,032.64

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Solution

The fourth proportional to 626,509.12, 864,590.88 and 340,032.64 is: 469,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,509.12 : 864,590.88 = 340,032.64 : x
  2. Step 2: Convert to fraction form
    626,509.12/864,590.88 = 340,032.64/x
  3. Step 3: Cross multiply
    626,509.12x = 864,590.88 × 340,032.64
  4. Step 4: Simplify right side
    626,509.12x = 293,989,119,446.32
  5. Step 5: Solve for x
    x = 293,989,119,446.32/626,509.12
  6. Step 6: Final answer
    x = 469,249.54

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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.