Home / 1,114,139.48-1,671,449.00-345,621.89

Finding the Fourth Proportional to 1,114,139.48, 1,671,449.00 and 345,621.89

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Solution

The fourth proportional to 1,114,139.48, 1,671,449.00 and 345,621.89 is: 518,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,139.48 : 1,671,449.00 = 345,621.89 : x
  2. Step 2: Convert to fraction form
    1,114,139.48/1,671,449.00 = 345,621.89/x
  3. Step 3: Cross multiply
    1,114,139.48x = 1,671,449.00 × 345,621.89
  4. Step 4: Simplify right side
    1,114,139.48x = 577,689,356,439.28
  5. Step 5: Solve for x
    x = 577,689,356,439.28/1,114,139.48
  6. Step 6: Final answer
    x = 518,507.21

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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.