Home / 1,420,603.10-1,960,475.37-776,064.81

Finding the Fourth Proportional to 1,420,603.10, 1,960,475.37 and 776,064.81

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Solution

The fourth proportional to 1,420,603.10, 1,960,475.37 and 776,064.81 is: 1,070,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,603.10 : 1,960,475.37 = 776,064.81 : x
  2. Step 2: Convert to fraction form
    1,420,603.10/1,960,475.37 = 776,064.81/x
  3. Step 3: Cross multiply
    1,420,603.10x = 1,960,475.37 × 776,064.81
  4. Step 4: Simplify right side
    1,420,603.10x = 1,521,455,945,528.73
  5. Step 5: Solve for x
    x = 1,521,455,945,528.73/1,420,603.10
  6. Step 6: Final answer
    x = 1,070,992.98

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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.