Home / 529,678.71-730,964.94-287,962.21

Finding the Fourth Proportional to 529,678.71, 730,964.94 and 287,962.21

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Solution

The fourth proportional to 529,678.71, 730,964.94 and 287,962.21 is: 397,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,678.71 : 730,964.94 = 287,962.21 : x
  2. Step 2: Convert to fraction form
    529,678.71/730,964.94 = 287,962.21/x
  3. Step 3: Cross multiply
    529,678.71x = 730,964.94 × 287,962.21
  4. Step 4: Simplify right side
    529,678.71x = 210,490,277,727.51
  5. Step 5: Solve for x
    x = 210,490,277,727.51/529,678.71
  6. Step 6: Final answer
    x = 397,392.37

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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.