Home / 1,690,136.34-2,535,321.54-679,259.16

Finding the Fourth Proportional to 1,690,136.34, 2,535,321.54 and 679,259.16

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Solution

The fourth proportional to 1,690,136.34, 2,535,321.54 and 679,259.16 is: 1,018,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,136.34 : 2,535,321.54 = 679,259.16 : x
  2. Step 2: Convert to fraction form
    1,690,136.34/2,535,321.54 = 679,259.16/x
  3. Step 3: Cross multiply
    1,690,136.34x = 2,535,321.54 × 679,259.16
  4. Step 4: Simplify right side
    1,690,136.34x = 1,722,140,379,590.31
  5. Step 5: Solve for x
    x = 1,722,140,379,590.31/1,690,136.34
  6. Step 6: Final answer
    x = 1,018,935.77

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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.