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Finding the Fourth Proportional to 626,547.83, 864,636.65 and 340,067.98

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Solution

The fourth proportional to 626,547.83, 864,636.65 and 340,067.98 is: 469,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,547.83 : 864,636.65 = 340,067.98 : x
  2. Step 2: Convert to fraction form
    626,547.83/864,636.65 = 340,067.98/x
  3. Step 3: Cross multiply
    626,547.83x = 864,636.65 × 340,067.98
  4. Step 4: Simplify right side
    626,547.83x = 294,035,238,999.47
  5. Step 5: Solve for x
    x = 294,035,238,999.47/626,547.83
  6. Step 6: Final answer
    x = 469,294.16

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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.