Home / 778,385.19-1,073,614.28-505,944.93

Finding the Fourth Proportional to 778,385.19, 1,073,614.28 and 505,944.93

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Solution

The fourth proportional to 778,385.19, 1,073,614.28 and 505,944.93 is: 697,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,385.19 : 1,073,614.28 = 505,944.93 : x
  2. Step 2: Convert to fraction form
    778,385.19/1,073,614.28 = 505,944.93/x
  3. Step 3: Cross multiply
    778,385.19x = 1,073,614.28 × 505,944.93
  4. Step 4: Simplify right side
    778,385.19x = 543,189,701,741.60
  5. Step 5: Solve for x
    x = 543,189,701,741.60/778,385.19
  6. Step 6: Final answer
    x = 697,841.77

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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.