Home / 745,786.08-1,029,186.54-406,276.20

Finding the Fourth Proportional to 745,786.08, 1,029,186.54 and 406,276.20

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Solution

The fourth proportional to 745,786.08, 1,029,186.54 and 406,276.20 is: 560,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,786.08 : 1,029,186.54 = 406,276.20 : x
  2. Step 2: Convert to fraction form
    745,786.08/1,029,186.54 = 406,276.20/x
  3. Step 3: Cross multiply
    745,786.08x = 1,029,186.54 × 406,276.20
  4. Step 4: Simplify right side
    745,786.08x = 418,133,996,562.35
  5. Step 5: Solve for x
    x = 418,133,996,562.35/745,786.08
  6. Step 6: Final answer
    x = 560,662.11

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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.