Home / 776,878.57-1,072,015.79-432,702.96

Finding the Fourth Proportional to 776,878.57, 1,072,015.79 and 432,702.96

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Solution

The fourth proportional to 776,878.57, 1,072,015.79 and 432,702.96 is: 597,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,878.57 : 1,072,015.79 = 432,702.96 : x
  2. Step 2: Convert to fraction form
    776,878.57/1,072,015.79 = 432,702.96/x
  3. Step 3: Cross multiply
    776,878.57x = 1,072,015.79 × 432,702.96
  4. Step 4: Simplify right side
    776,878.57x = 463,864,405,499.74
  5. Step 5: Solve for x
    x = 463,864,405,499.74/776,878.57
  6. Step 6: Final answer
    x = 597,087.40

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1.5x scale

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.