Home / 999,603.45-1,378,017.97-712,625.31

Finding the Fourth Proportional to 999,603.45, 1,378,017.97 and 712,625.31

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Solution

The fourth proportional to 999,603.45, 1,378,017.97 and 712,625.31 is: 982,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,603.45 : 1,378,017.97 = 712,625.31 : x
  2. Step 2: Convert to fraction form
    999,603.45/1,378,017.97 = 712,625.31/x
  3. Step 3: Cross multiply
    999,603.45x = 1,378,017.97 × 712,625.31
  4. Step 4: Simplify right side
    999,603.45x = 982,010,475,461.76
  5. Step 5: Solve for x
    x = 982,010,475,461.76/999,603.45
  6. Step 6: Final answer
    x = 982,400.05

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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.