Home / 1,209,226.80-1,813,840.20-310,666.80

Finding the Fourth Proportional to 1,209,226.80, 1,813,840.20 and 310,666.80

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Solution

The fourth proportional to 1,209,226.80, 1,813,840.20 and 310,666.80 is: 466,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,226.80 : 1,813,840.20 = 310,666.80 : x
  2. Step 2: Convert to fraction form
    1,209,226.80/1,813,840.20 = 310,666.80/x
  3. Step 3: Cross multiply
    1,209,226.80x = 1,813,840.20 × 310,666.80
  4. Step 4: Simplify right side
    1,209,226.80x = 563,499,930,645.36
  5. Step 5: Solve for x
    x = 563,499,930,645.36/1,209,226.80
  6. Step 6: Final answer
    x = 466,000.20

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Double scale
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Similar ratio
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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.