Home / 789,428.16-1,182,124.32-434,051.52

Finding the Fourth Proportional to 789,428.16, 1,182,124.32 and 434,051.52

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Solution

The fourth proportional to 789,428.16, 1,182,124.32 and 434,051.52 is: 649,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,428.16 : 1,182,124.32 = 434,051.52 : x
  2. Step 2: Convert to fraction form
    789,428.16/1,182,124.32 = 434,051.52/x
  3. Step 3: Cross multiply
    789,428.16x = 1,182,124.32 × 434,051.52
  4. Step 4: Simplify right side
    789,428.16x = 513,102,857,924.97
  5. Step 5: Solve for x
    x = 513,102,857,924.97/789,428.16
  6. Step 6: Final answer
    x = 649,967.77

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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.