Home / 1,077,877.81-1,615,379.86-509,409.69

Finding the Fourth Proportional to 1,077,877.81, 1,615,379.86 and 509,409.69

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Solution

The fourth proportional to 1,077,877.81, 1,615,379.86 and 509,409.69 is: 763,435.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,877.81 : 1,615,379.86 = 509,409.69 : x
  2. Step 2: Convert to fraction form
    1,077,877.81/1,615,379.86 = 509,409.69/x
  3. Step 3: Cross multiply
    1,077,877.81x = 1,615,379.86 × 509,409.69
  4. Step 4: Simplify right side
    1,077,877.81x = 822,890,153,714.84
  5. Step 5: Solve for x
    x = 822,890,153,714.84/1,077,877.81
  6. Step 6: Final answer
    x = 763,435.47

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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.