Home / 529,798.05-731,110.96-288,078.51

Finding the Fourth Proportional to 529,798.05, 731,110.96 and 288,078.51

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Solution

The fourth proportional to 529,798.05, 731,110.96 and 288,078.51 is: 397,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,798.05 : 731,110.96 = 288,078.51 : x
  2. Step 2: Convert to fraction form
    529,798.05/731,110.96 = 288,078.51/x
  3. Step 3: Cross multiply
    529,798.05x = 731,110.96 × 288,078.51
  4. Step 4: Simplify right side
    529,798.05x = 210,617,356,001.47
  5. Step 5: Solve for x
    x = 210,617,356,001.47/529,798.05
  6. Step 6: Final answer
    x = 397,542.72

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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.