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Finding the Fourth Proportional to 707,477.32, 976,269.45 and 401,559.94

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Solution

The fourth proportional to 707,477.32, 976,269.45 and 401,559.94 is: 554,124.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,477.32 : 976,269.45 = 401,559.94 : x
  2. Step 2: Convert to fraction form
    707,477.32/976,269.45 = 401,559.94/x
  3. Step 3: Cross multiply
    707,477.32x = 976,269.45 × 401,559.94
  4. Step 4: Simplify right side
    707,477.32x = 392,030,696,741.73
  5. Step 5: Solve for x
    x = 392,030,696,741.73/707,477.32
  6. Step 6: Final answer
    x = 554,124.75

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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.