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Finding the Fourth Proportional to 1,829,395.86, 2,742,628.50 and 869,369.70

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Solution

The fourth proportional to 1,829,395.86, 2,742,628.50 and 869,369.70 is: 1,303,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829,395.86 : 2,742,628.50 = 869,369.70 : x
  2. Step 2: Convert to fraction form
    1,829,395.86/2,742,628.50 = 869,369.70/x
  3. Step 3: Cross multiply
    1,829,395.86x = 2,742,628.50 × 869,369.70
  4. Step 4: Simplify right side
    1,829,395.86x = 2,384,358,116,256.45
  5. Step 5: Solve for x
    x = 2,384,358,116,256.45/1,829,395.86
  6. Step 6: Final answer
    x = 1,303,358.21

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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.