Home / 1,535,271.47-2,117,989.82-890,318.18

Finding the Fourth Proportional to 1,535,271.47, 2,117,989.82 and 890,318.18

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Solution

The fourth proportional to 1,535,271.47, 2,117,989.82 and 890,318.18 is: 1,228,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,271.47 : 2,117,989.82 = 890,318.18 : x
  2. Step 2: Convert to fraction form
    1,535,271.47/2,117,989.82 = 890,318.18/x
  3. Step 3: Cross multiply
    1,535,271.47x = 2,117,989.82 × 890,318.18
  4. Step 4: Simplify right side
    1,535,271.47x = 1,885,684,849,321.70
  5. Step 5: Solve for x
    x = 1,885,684,849,321.70/1,535,271.47
  6. Step 6: Final answer
    x = 1,228,241.97

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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.