Home / 1,521,719.80-2,282,406.90-399,902.20

Finding the Fourth Proportional to 1,521,719.80, 2,282,406.90 and 399,902.20

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Solution

The fourth proportional to 1,521,719.80, 2,282,406.90 and 399,902.20 is: 599,807.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,719.80 : 2,282,406.90 = 399,902.20 : x
  2. Step 2: Convert to fraction form
    1,521,719.80/2,282,406.90 = 399,902.20/x
  3. Step 3: Cross multiply
    1,521,719.80x = 2,282,406.90 × 399,902.20
  4. Step 4: Simplify right side
    1,521,719.80x = 912,739,540,605.18
  5. Step 5: Solve for x
    x = 912,739,540,605.18/1,521,719.80
  6. Step 6: Final answer
    x = 599,807.89

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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.