Home / 705,627.60-1,057,750.20-368,840.40

Finding the Fourth Proportional to 705,627.60, 1,057,750.20 and 368,840.40

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Solution

The fourth proportional to 705,627.60, 1,057,750.20 and 368,840.40 is: 552,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,627.60 : 1,057,750.20 = 368,840.40 : x
  2. Step 2: Convert to fraction form
    705,627.60/1,057,750.20 = 368,840.40/x
  3. Step 3: Cross multiply
    705,627.60x = 1,057,750.20 × 368,840.40
  4. Step 4: Simplify right side
    705,627.60x = 390,141,006,868.08
  5. Step 5: Solve for x
    x = 390,141,006,868.08/705,627.60
  6. Step 6: Final answer
    x = 552,899.30

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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.