Home / 1,139,433.70-1,709,150.55-714,280.90

Finding the Fourth Proportional to 1,139,433.70, 1,709,150.55 and 714,280.90

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Solution

The fourth proportional to 1,139,433.70, 1,709,150.55 and 714,280.90 is: 1,071,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,433.70 : 1,709,150.55 = 714,280.90 : x
  2. Step 2: Convert to fraction form
    1,139,433.70/1,709,150.55 = 714,280.90/x
  3. Step 3: Cross multiply
    1,139,433.70x = 1,709,150.55 × 714,280.90
  4. Step 4: Simplify right side
    1,139,433.70x = 1,220,813,593,089.50
  5. Step 5: Solve for x
    x = 1,220,813,593,089.50/1,139,433.70
  6. Step 6: Final answer
    x = 1,071,421.35

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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.