Home / 520,669.07-780,112.06-284,177.69

Finding the Fourth Proportional to 520,669.07, 780,112.06 and 284,177.69

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Solution

The fourth proportional to 520,669.07, 780,112.06 and 284,177.69 is: 425,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,669.07 : 780,112.06 = 284,177.69 : x
  2. Step 2: Convert to fraction form
    520,669.07/780,112.06 = 284,177.69/x
  3. Step 3: Cross multiply
    520,669.07x = 780,112.06 × 284,177.69
  4. Step 4: Simplify right side
    520,669.07x = 221,690,443,151.94
  5. Step 5: Solve for x
    x = 221,690,443,151.94/520,669.07
  6. Step 6: Final answer
    x = 425,779.94

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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.