Home / 680,606.87-1,018,345.16-406,037.66

Finding the Fourth Proportional to 680,606.87, 1,018,345.16 and 406,037.66

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Solution

The fourth proportional to 680,606.87, 1,018,345.16 and 406,037.66 is: 607,526.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,606.87 : 1,018,345.16 = 406,037.66 : x
  2. Step 2: Convert to fraction form
    680,606.87/1,018,345.16 = 406,037.66/x
  3. Step 3: Cross multiply
    680,606.87x = 1,018,345.16 × 406,037.66
  4. Step 4: Simplify right side
    680,606.87x = 413,486,481,762.09
  5. Step 5: Solve for x
    x = 413,486,481,762.09/680,606.87
  6. Step 6: Final answer
    x = 607,526.17

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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.