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Finding the Fourth Proportional to 700,383.95, 973,054.95 and 691,985.87

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Solution

The fourth proportional to 700,383.95, 973,054.95 and 691,985.87 is: 961,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,383.95 : 973,054.95 = 691,985.87 : x
  2. Step 2: Convert to fraction form
    700,383.95/973,054.95 = 691,985.87/x
  3. Step 3: Cross multiply
    700,383.95x = 973,054.95 × 691,985.87
  4. Step 4: Simplify right side
    700,383.95x = 673,340,272,322.29
  5. Step 5: Solve for x
    x = 673,340,272,322.29/700,383.95
  6. Step 6: Final answer
    x = 961,387.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.