Home / 746,143.56-1,029,699.96-406,633.68

Finding the Fourth Proportional to 746,143.56, 1,029,699.96 and 406,633.68

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Solution

The fourth proportional to 746,143.56, 1,029,699.96 and 406,633.68 is: 561,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,143.56 : 1,029,699.96 = 406,633.68 : x
  2. Step 2: Convert to fraction form
    746,143.56/1,029,699.96 = 406,633.68/x
  3. Step 3: Cross multiply
    746,143.56x = 1,029,699.96 × 406,633.68
  4. Step 4: Simplify right side
    746,143.56x = 418,710,684,030.65
  5. Step 5: Solve for x
    x = 418,710,684,030.65/746,143.56
  6. Step 6: Final answer
    x = 561,166.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.