Home / 1,398,345.40-2,095,962.90-767,711.80

Finding the Fourth Proportional to 1,398,345.40, 2,095,962.90 and 767,711.80

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Solution

The fourth proportional to 1,398,345.40, 2,095,962.90 and 767,711.80 is: 1,150,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,345.40 : 2,095,962.90 = 767,711.80 : x
  2. Step 2: Convert to fraction form
    1,398,345.40/2,095,962.90 = 767,711.80/x
  3. Step 3: Cross multiply
    1,398,345.40x = 2,095,962.90 × 767,711.80
  4. Step 4: Simplify right side
    1,398,345.40x = 1,609,095,450,692.22
  5. Step 5: Solve for x
    x = 1,609,095,450,692.22/1,398,345.40
  6. Step 6: Final answer
    x = 1,150,713.87

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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.