Home / 1,110,021.40-1,664,011.50-399,875.77

Finding the Fourth Proportional to 1,110,021.40, 1,664,011.50 and 399,875.77

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Solution

The fourth proportional to 1,110,021.40, 1,664,011.50 and 399,875.77 is: 599,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,021.40 : 1,664,011.50 = 399,875.77 : x
  2. Step 2: Convert to fraction form
    1,110,021.40/1,664,011.50 = 399,875.77/x
  3. Step 3: Cross multiply
    1,110,021.40x = 1,664,011.50 × 399,875.77
  4. Step 4: Simplify right side
    1,110,021.40x = 665,397,879,851.36
  5. Step 5: Solve for x
    x = 665,397,879,851.36/1,110,021.40
  6. Step 6: Final answer
    x = 599,445.99

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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.