Home / 1,216,779.48-1,679,124.81-672,900.78

Finding the Fourth Proportional to 1,216,779.48, 1,679,124.81 and 672,900.78

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Solution

The fourth proportional to 1,216,779.48, 1,679,124.81 and 672,900.78 is: 928,586.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,779.48 : 1,679,124.81 = 672,900.78 : x
  2. Step 2: Convert to fraction form
    1,216,779.48/1,679,124.81 = 672,900.78/x
  3. Step 3: Cross multiply
    1,216,779.48x = 1,679,124.81 × 672,900.78
  4. Step 4: Simplify right side
    1,216,779.48x = 1,129,884,394,366.35
  5. Step 5: Solve for x
    x = 1,129,884,394,366.35/1,216,779.48
  6. Step 6: Final answer
    x = 928,586.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.