Home / 745,920.36-1,029,390.12-406,410.48

Finding the Fourth Proportional to 745,920.36, 1,029,390.12 and 406,410.48

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Solution

The fourth proportional to 745,920.36, 1,029,390.12 and 406,410.48 is: 560,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,920.36 : 1,029,390.12 = 406,410.48 : x
  2. Step 2: Convert to fraction form
    745,920.36/1,029,390.12 = 406,410.48/x
  3. Step 3: Cross multiply
    745,920.36x = 1,029,390.12 × 406,410.48
  4. Step 4: Simplify right side
    745,920.36x = 418,354,932,776.46
  5. Step 5: Solve for x
    x = 418,354,932,776.46/745,920.36
  6. Step 6: Final answer
    x = 560,857.37

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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.