Home / 1,098,120.15-1,646,688.15-423,977.40

Finding the Fourth Proportional to 1,098,120.15, 1,646,688.15 and 423,977.40

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Solution

The fourth proportional to 1,098,120.15, 1,646,688.15 and 423,977.40 is: 635,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,120.15 : 1,646,688.15 = 423,977.40 : x
  2. Step 2: Convert to fraction form
    1,098,120.15/1,646,688.15 = 423,977.40/x
  3. Step 3: Cross multiply
    1,098,120.15x = 1,646,688.15 × 423,977.40
  4. Step 4: Simplify right side
    1,098,120.15x = 698,158,560,447.81
  5. Step 5: Solve for x
    x = 698,158,560,447.81/1,098,120.15
  6. Step 6: Final answer
    x = 635,776.11

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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.