Home / 1,688,477.56-2,330,113.92-1,000,188.64

Finding the Fourth Proportional to 1,688,477.56, 2,330,113.92 and 1,000,188.64

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Solution

The fourth proportional to 1,688,477.56, 2,330,113.92 and 1,000,188.64 is: 1,380,269.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,477.56 : 2,330,113.92 = 1,000,188.64 : x
  2. Step 2: Convert to fraction form
    1,688,477.56/2,330,113.92 = 1,000,188.64/x
  3. Step 3: Cross multiply
    1,688,477.56x = 2,330,113.92 × 1,000,188.64
  4. Step 4: Simplify right side
    1,688,477.56x = 2,330,553,472,689.87
  5. Step 5: Solve for x
    x = 2,330,553,472,689.87/1,688,477.56
  6. Step 6: Final answer
    x = 1,380,269.14

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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.