Home / 529,830.32-731,143.58-300,403.04

Finding the Fourth Proportional to 529,830.32, 731,143.58 and 300,403.04

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Solution

The fourth proportional to 529,830.32, 731,143.58 and 300,403.04 is: 414,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,830.32 : 731,143.58 = 300,403.04 : x
  2. Step 2: Convert to fraction form
    529,830.32/731,143.58 = 300,403.04/x
  3. Step 3: Cross multiply
    529,830.32x = 731,143.58 × 300,403.04
  4. Step 4: Simplify right side
    529,830.32x = 219,637,748,950.75
  5. Step 5: Solve for x
    x = 219,637,748,950.75/529,830.32
  6. Step 6: Final answer
    x = 414,543.57

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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.