Home / 1,123,311.90-1,684,967.85-698,159.10

Finding the Fourth Proportional to 1,123,311.90, 1,684,967.85 and 698,159.10

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Solution

The fourth proportional to 1,123,311.90, 1,684,967.85 and 698,159.10 is: 1,047,238.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,311.90 : 1,684,967.85 = 698,159.10 : x
  2. Step 2: Convert to fraction form
    1,123,311.90/1,684,967.85 = 698,159.10/x
  3. Step 3: Cross multiply
    1,123,311.90x = 1,684,967.85 × 698,159.10
  4. Step 4: Simplify right side
    1,123,311.90x = 1,176,375,637,684.94
  5. Step 5: Solve for x
    x = 1,176,375,637,684.94/1,123,311.90
  6. Step 6: Final answer
    x = 1,047,238.65

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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.