Home / 1,078,411.10-1,617,616.65-742,487.90

Finding the Fourth Proportional to 1,078,411.10, 1,617,616.65 and 742,487.90

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Solution

The fourth proportional to 1,078,411.10, 1,617,616.65 and 742,487.90 is: 1,113,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,411.10 : 1,617,616.65 = 742,487.90 : x
  2. Step 2: Convert to fraction form
    1,078,411.10/1,617,616.65 = 742,487.90/x
  3. Step 3: Cross multiply
    1,078,411.10x = 1,617,616.65 × 742,487.90
  4. Step 4: Simplify right side
    1,078,411.10x = 1,201,060,789,463.53
  5. Step 5: Solve for x
    x = 1,201,060,789,463.53/1,078,411.10
  6. Step 6: Final answer
    x = 1,113,731.85

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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.