Home / 999,878.96-1,500,038.76-289,936.64

Finding the Fourth Proportional to 999,878.96, 1,500,038.76 and 289,936.64

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Solution

The fourth proportional to 999,878.96, 1,500,038.76 and 289,936.64 is: 434,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,878.96 : 1,500,038.76 = 289,936.64 : x
  2. Step 2: Convert to fraction form
    999,878.96/1,500,038.76 = 289,936.64/x
  3. Step 3: Cross multiply
    999,878.96x = 1,500,038.76 × 289,936.64
  4. Step 4: Simplify right side
    999,878.96x = 434,916,197,944.17
  5. Step 5: Solve for x
    x = 434,916,197,944.17/999,878.96
  6. Step 6: Final answer
    x = 434,968.85

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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.