Home / 745,821.36-1,029,264.84-406,308.24

Finding the Fourth Proportional to 745,821.36, 1,029,264.84 and 406,308.24

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Solution

The fourth proportional to 745,821.36, 1,029,264.84 and 406,308.24 is: 560,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,821.36 : 1,029,264.84 = 406,308.24 : x
  2. Step 2: Convert to fraction form
    745,821.36/1,029,264.84 = 406,308.24/x
  3. Step 3: Cross multiply
    745,821.36x = 1,029,264.84 × 406,308.24
  4. Step 4: Simplify right side
    745,821.36x = 418,198,785,634.28
  5. Step 5: Solve for x
    x = 418,198,785,634.28/745,821.36
  6. Step 6: Final answer
    x = 560,722.46

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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.