Home / 1,078,139.80-1,617,353.70-367,989.40

Finding the Fourth Proportional to 1,078,139.80, 1,617,353.70 and 367,989.40

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Solution

The fourth proportional to 1,078,139.80, 1,617,353.70 and 367,989.40 is: 552,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,139.80 : 1,617,353.70 = 367,989.40 : x
  2. Step 2: Convert to fraction form
    1,078,139.80/1,617,353.70 = 367,989.40/x
  3. Step 3: Cross multiply
    1,078,139.80x = 1,617,353.70 × 367,989.40
  4. Step 4: Simplify right side
    1,078,139.80x = 595,169,017,650.78
  5. Step 5: Solve for x
    x = 595,169,017,650.78/1,078,139.80
  6. Step 6: Final answer
    x = 552,033.25

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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.