Home / 1,130,115-1,693,911.55-489,679.39

Finding the Fourth Proportional to 1,130,115, 1,693,911.55 and 489,679.39

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Solution

The fourth proportional to 1,130,115, 1,693,911.55 and 489,679.39 is: 733,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,115 : 1,693,911.55 = 489,679.39 : x
  2. Step 2: Convert to fraction form
    1,130,115/1,693,911.55 = 489,679.39/x
  3. Step 3: Cross multiply
    1,130,115x = 1,693,911.55 × 489,679.39
  4. Step 4: Simplify right side
    1,130,115x = 829,473,574,517.96
  5. Step 5: Solve for x
    x = 829,473,574,517.96/1,130,115
  6. Step 6: Final answer
    x = 733,972.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.