Home / 826,602.72-1,238,719.98-470,882.28

Finding the Fourth Proportional to 826,602.72, 1,238,719.98 and 470,882.28

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Solution

The fourth proportional to 826,602.72, 1,238,719.98 and 470,882.28 is: 705,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,602.72 : 1,238,719.98 = 470,882.28 : x
  2. Step 2: Convert to fraction form
    826,602.72/1,238,719.98 = 470,882.28/x
  3. Step 3: Cross multiply
    826,602.72x = 1,238,719.98 × 470,882.28
  4. Step 4: Simplify right side
    826,602.72x = 583,291,288,463.96
  5. Step 5: Solve for x
    x = 583,291,288,463.96/826,602.72
  6. Step 6: Final answer
    x = 705,648.89

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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.