Home / 1,390,232.85-1,916,886.78-1,114,370.15

Finding the Fourth Proportional to 1,390,232.85, 1,916,886.78 and 1,114,370.15

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Solution

The fourth proportional to 1,390,232.85, 1,916,886.78 and 1,114,370.15 is: 1,536,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,232.85 : 1,916,886.78 = 1,114,370.15 : x
  2. Step 2: Convert to fraction form
    1,390,232.85/1,916,886.78 = 1,114,370.15/x
  3. Step 3: Cross multiply
    1,390,232.85x = 1,916,886.78 × 1,114,370.15
  4. Step 4: Simplify right side
    1,390,232.85x = 2,136,121,398,977.18
  5. Step 5: Solve for x
    x = 2,136,121,398,977.18/1,390,232.85
  6. Step 6: Final answer
    x = 1,536,520.59

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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.