Home / 1,603,355.28-2,212,014.66-915,065.40

Finding the Fourth Proportional to 1,603,355.28, 2,212,014.66 and 915,065.40

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Solution

The fourth proportional to 1,603,355.28, 2,212,014.66 and 915,065.40 is: 1,262,438.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,355.28 : 2,212,014.66 = 915,065.40 : x
  2. Step 2: Convert to fraction form
    1,603,355.28/2,212,014.66 = 915,065.40/x
  3. Step 3: Cross multiply
    1,603,355.28x = 2,212,014.66 × 915,065.40
  4. Step 4: Simplify right side
    1,603,355.28x = 2,024,138,079,658.76
  5. Step 5: Solve for x
    x = 2,024,138,079,658.76/1,603,355.28
  6. Step 6: Final answer
    x = 1,262,438.90

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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.