Home / 989,103.94-1,365,036.90-553,565.01

Finding the Fourth Proportional to 989,103.94, 1,365,036.90 and 553,565.01

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Solution

The fourth proportional to 989,103.94, 1,365,036.90 and 553,565.01 is: 763,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,103.94 : 1,365,036.90 = 553,565.01 : x
  2. Step 2: Convert to fraction form
    989,103.94/1,365,036.90 = 553,565.01/x
  3. Step 3: Cross multiply
    989,103.94x = 1,365,036.90 × 553,565.01
  4. Step 4: Simplify right side
    989,103.94x = 755,636,665,198.87
  5. Step 5: Solve for x
    x = 755,636,665,198.87/989,103.94
  6. Step 6: Final answer
    x = 763,960.83

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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.