Home / 678,558.60-1,017,837.90-346,091.40

Finding the Fourth Proportional to 678,558.60, 1,017,837.90 and 346,091.40

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Solution

The fourth proportional to 678,558.60, 1,017,837.90 and 346,091.40 is: 519,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,558.60 : 1,017,837.90 = 346,091.40 : x
  2. Step 2: Convert to fraction form
    678,558.60/1,017,837.90 = 346,091.40/x
  3. Step 3: Cross multiply
    678,558.60x = 1,017,837.90 × 346,091.40
  4. Step 4: Simplify right side
    678,558.60x = 352,264,943,784.06
  5. Step 5: Solve for x
    x = 352,264,943,784.06/678,558.60
  6. Step 6: Final answer
    x = 519,137.10

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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.