Home / 999,603.95-1,378,018.66-712,625.81

Finding the Fourth Proportional to 999,603.95, 1,378,018.66 and 712,625.81

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Solution

The fourth proportional to 999,603.95, 1,378,018.66 and 712,625.81 is: 982,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,603.95 : 1,378,018.66 = 712,625.81 : x
  2. Step 2: Convert to fraction form
    999,603.95/1,378,018.66 = 712,625.81/x
  3. Step 3: Cross multiply
    999,603.95x = 1,378,018.66 × 712,625.81
  4. Step 4: Simplify right side
    999,603.95x = 982,011,653,324.39
  5. Step 5: Solve for x
    x = 982,011,653,324.39/999,603.95
  6. Step 6: Final answer
    x = 982,400.74

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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.