Home / 729,798.80-1,007,112.76-407,514.36

Finding the Fourth Proportional to 729,798.80, 1,007,112.76 and 407,514.36

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Solution

The fourth proportional to 729,798.80, 1,007,112.76 and 407,514.36 is: 562,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,798.80 : 1,007,112.76 = 407,514.36 : x
  2. Step 2: Convert to fraction form
    729,798.80/1,007,112.76 = 407,514.36/x
  3. Step 3: Cross multiply
    729,798.80x = 1,007,112.76 × 407,514.36
  4. Step 4: Simplify right side
    729,798.80x = 410,412,911,839.23
  5. Step 5: Solve for x
    x = 410,412,911,839.23/729,798.80
  6. Step 6: Final answer
    x = 562,364.47

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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.