Home / 1,280,438.84-1,767,001.96-707,474.93

Finding the Fourth Proportional to 1,280,438.84, 1,767,001.96 and 707,474.93

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Solution

The fourth proportional to 1,280,438.84, 1,767,001.96 and 707,474.93 is: 976,313.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,438.84 : 1,767,001.96 = 707,474.93 : x
  2. Step 2: Convert to fraction form
    1,280,438.84/1,767,001.96 = 707,474.93/x
  3. Step 3: Cross multiply
    1,280,438.84x = 1,767,001.96 × 707,474.93
  4. Step 4: Simplify right side
    1,280,438.84x = 1,250,109,587,960.86
  5. Step 5: Solve for x
    x = 1,250,109,587,960.86/1,280,438.84
  6. Step 6: Final answer
    x = 976,313.39

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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.