Home / 750,878.32-1,036,203.78-406,705.72

Finding the Fourth Proportional to 750,878.32, 1,036,203.78 and 406,705.72

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Solution

The fourth proportional to 750,878.32, 1,036,203.78 and 406,705.72 is: 561,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,878.32 : 1,036,203.78 = 406,705.72 : x
  2. Step 2: Convert to fraction form
    750,878.32/1,036,203.78 = 406,705.72/x
  3. Step 3: Cross multiply
    750,878.32x = 1,036,203.78 × 406,705.72
  4. Step 4: Simplify right side
    750,878.32x = 421,430,004,411.62
  5. Step 5: Solve for x
    x = 421,430,004,411.62/750,878.32
  6. Step 6: Final answer
    x = 561,249.40

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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.