Home / 1,087,009.65-1,630,022.40-412,866.90

Finding the Fourth Proportional to 1,087,009.65, 1,630,022.40 and 412,866.90

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Solution

The fourth proportional to 1,087,009.65, 1,630,022.40 and 412,866.90 is: 619,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,009.65 : 1,630,022.40 = 412,866.90 : x
  2. Step 2: Convert to fraction form
    1,087,009.65/1,630,022.40 = 412,866.90/x
  3. Step 3: Cross multiply
    1,087,009.65x = 1,630,022.40 × 412,866.90
  4. Step 4: Simplify right side
    1,087,009.65x = 672,982,295,218.56
  5. Step 5: Solve for x
    x = 672,982,295,218.56/1,087,009.65
  6. Step 6: Final answer
    x = 619,113.45

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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.