Home / 1,289,171.64-1,779,088.50-708,390.03

Finding the Fourth Proportional to 1,289,171.64, 1,779,088.50 and 708,390.03

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Solution

The fourth proportional to 1,289,171.64, 1,779,088.50 and 708,390.03 is: 977,595.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,171.64 : 1,779,088.50 = 708,390.03 : x
  2. Step 2: Convert to fraction form
    1,289,171.64/1,779,088.50 = 708,390.03/x
  3. Step 3: Cross multiply
    1,289,171.64x = 1,779,088.50 × 708,390.03
  4. Step 4: Simplify right side
    1,289,171.64x = 1,260,288,555,887.66
  5. Step 5: Solve for x
    x = 1,260,288,555,887.66/1,289,171.64
  6. Step 6: Final answer
    x = 977,595.63

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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.