Home / 1,110,815.40-1,666,044.90-400,477.80

Finding the Fourth Proportional to 1,110,815.40, 1,666,044.90 and 400,477.80

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Solution

The fourth proportional to 1,110,815.40, 1,666,044.90 and 400,477.80 is: 600,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,815.40 : 1,666,044.90 = 400,477.80 : x
  2. Step 2: Convert to fraction form
    1,110,815.40/1,666,044.90 = 400,477.80/x
  3. Step 3: Cross multiply
    1,110,815.40x = 1,666,044.90 × 400,477.80
  4. Step 4: Simplify right side
    1,110,815.40x = 667,213,996,253.22
  5. Step 5: Solve for x
    x = 667,213,996,253.22/1,110,815.40
  6. Step 6: Final answer
    x = 600,652.45

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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.