Home / 855,935.40-1,283,319.90-406,871.40

Finding the Fourth Proportional to 855,935.40, 1,283,319.90 and 406,871.40

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Solution

The fourth proportional to 855,935.40, 1,283,319.90 and 406,871.40 is: 610,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,935.40 : 1,283,319.90 = 406,871.40 : x
  2. Step 2: Convert to fraction form
    855,935.40/1,283,319.90 = 406,871.40/x
  3. Step 3: Cross multiply
    855,935.40x = 1,283,319.90 × 406,871.40
  4. Step 4: Simplify right side
    855,935.40x = 522,146,164,360.86
  5. Step 5: Solve for x
    x = 522,146,164,360.86/855,935.40
  6. Step 6: Final answer
    x = 610,029.87

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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.