Home / 1,289,641.10-1,779,900.89-928,261.22

Finding the Fourth Proportional to 1,289,641.10, 1,779,900.89 and 928,261.22

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Solution

The fourth proportional to 1,289,641.10, 1,779,900.89 and 928,261.22 is: 1,281,141.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,641.10 : 1,779,900.89 = 928,261.22 : x
  2. Step 2: Convert to fraction form
    1,289,641.10/1,779,900.89 = 928,261.22/x
  3. Step 3: Cross multiply
    1,289,641.10x = 1,779,900.89 × 928,261.22
  4. Step 4: Simplify right side
    1,289,641.10x = 1,652,212,958,089.68
  5. Step 5: Solve for x
    x = 1,652,212,958,089.68/1,289,641.10
  6. Step 6: Final answer
    x = 1,281,141.68

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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.