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Finding the Fourth Proportional to 608,386.60, 910,830.30 and 372,190.60

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Solution

The fourth proportional to 608,386.60, 910,830.30 and 372,190.60 is: 557,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,386.60 : 910,830.30 = 372,190.60 : x
  2. Step 2: Convert to fraction form
    608,386.60/910,830.30 = 372,190.60/x
  3. Step 3: Cross multiply
    608,386.60x = 910,830.30 × 372,190.60
  4. Step 4: Simplify right side
    608,386.60x = 339,002,475,855.18
  5. Step 5: Solve for x
    x = 339,002,475,855.18/608,386.60
  6. Step 6: Final answer
    x = 557,215.55

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1.5x scale

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.