Home / 678,221.40-1,017,494.10-204,911.40

Finding the Fourth Proportional to 678,221.40, 1,017,494.10 and 204,911.40

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Solution

The fourth proportional to 678,221.40, 1,017,494.10 and 204,911.40 is: 307,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,221.40 : 1,017,494.10 = 204,911.40 : x
  2. Step 2: Convert to fraction form
    678,221.40/1,017,494.10 = 204,911.40/x
  3. Step 3: Cross multiply
    678,221.40x = 1,017,494.10 × 204,911.40
  4. Step 4: Simplify right side
    678,221.40x = 208,496,140,522.74
  5. Step 5: Solve for x
    x = 208,496,140,522.74/678,221.40
  6. Step 6: Final answer
    x = 307,416.05

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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.