Home / 328,045.20-490,755.60-284,159.40

Finding the Fourth Proportional to 328,045.20, 490,755.60 and 284,159.40

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Solution

The fourth proportional to 328,045.20, 490,755.60 and 284,159.40 is: 425,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,045.20 : 490,755.60 = 284,159.40 : x
  2. Step 2: Convert to fraction form
    328,045.20/490,755.60 = 284,159.40/x
  3. Step 3: Cross multiply
    328,045.20x = 490,755.60 × 284,159.40
  4. Step 4: Simplify right side
    328,045.20x = 139,452,816,842.64
  5. Step 5: Solve for x
    x = 139,452,816,842.64/328,045.20
  6. Step 6: Final answer
    x = 425,102.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.