Home / 1,377,007.70-2,065,511.55-430,474.10

Finding the Fourth Proportional to 1,377,007.70, 2,065,511.55 and 430,474.10

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Solution

The fourth proportional to 1,377,007.70, 2,065,511.55 and 430,474.10 is: 645,711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,007.70 : 2,065,511.55 = 430,474.10 : x
  2. Step 2: Convert to fraction form
    1,377,007.70/2,065,511.55 = 430,474.10/x
  3. Step 3: Cross multiply
    1,377,007.70x = 2,065,511.55 × 430,474.10
  4. Step 4: Simplify right side
    1,377,007.70x = 889,149,225,525.86
  5. Step 5: Solve for x
    x = 889,149,225,525.86/1,377,007.70
  6. Step 6: Final answer
    x = 645,711.15

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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.