Home / 1,110,384.48-1,665,590.40-390,747.68

Finding the Fourth Proportional to 1,110,384.48, 1,665,590.40 and 390,747.68

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Solution

The fourth proportional to 1,110,384.48, 1,665,590.40 and 390,747.68 is: 586,126.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,384.48 : 1,665,590.40 = 390,747.68 : x
  2. Step 2: Convert to fraction form
    1,110,384.48/1,665,590.40 = 390,747.68/x
  3. Step 3: Cross multiply
    1,110,384.48x = 1,665,590.40 × 390,747.68
  4. Step 4: Simplify right side
    1,110,384.48x = 650,825,584,630.27
  5. Step 5: Solve for x
    x = 650,825,584,630.27/1,110,384.48
  6. Step 6: Final answer
    x = 586,126.33

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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.