Home / 1,006,590-1,389,103.92-553,890.72

Finding the Fourth Proportional to 1,006,590, 1,389,103.92 and 553,890.72

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Solution

The fourth proportional to 1,006,590, 1,389,103.92 and 553,890.72 is: 764,374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,590 : 1,389,103.92 = 553,890.72 : x
  2. Step 2: Convert to fraction form
    1,006,590/1,389,103.92 = 553,890.72/x
  3. Step 3: Cross multiply
    1,006,590x = 1,389,103.92 × 553,890.72
  4. Step 4: Simplify right side
    1,006,590x = 769,411,770,403.62
  5. Step 5: Solve for x
    x = 769,411,770,403.62/1,006,590
  6. Step 6: Final answer
    x = 764,374.54

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1.5x scale

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.