Home / 678,537.60-1,017,806.40-346,070.40

Finding the Fourth Proportional to 678,537.60, 1,017,806.40 and 346,070.40

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Solution

The fourth proportional to 678,537.60, 1,017,806.40 and 346,070.40 is: 519,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,537.60 : 1,017,806.40 = 346,070.40 : x
  2. Step 2: Convert to fraction form
    678,537.60/1,017,806.40 = 346,070.40/x
  3. Step 3: Cross multiply
    678,537.60x = 1,017,806.40 × 346,070.40
  4. Step 4: Simplify right side
    678,537.60x = 352,232,667,970.56
  5. Step 5: Solve for x
    x = 352,232,667,970.56/678,537.60
  6. Step 6: Final answer
    x = 519,105.60

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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.