Home / 1,309,994.18-1,807,779.21-729,208.10

Finding the Fourth Proportional to 1,309,994.18, 1,807,779.21 and 729,208.10

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Solution

The fourth proportional to 1,309,994.18, 1,807,779.21 and 729,208.10 is: 1,006,300.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,994.18 : 1,807,779.21 = 729,208.10 : x
  2. Step 2: Convert to fraction form
    1,309,994.18/1,807,779.21 = 729,208.10/x
  3. Step 3: Cross multiply
    1,309,994.18x = 1,807,779.21 × 729,208.10
  4. Step 4: Simplify right side
    1,309,994.18x = 1,318,247,242,943.60
  5. Step 5: Solve for x
    x = 1,318,247,242,943.60/1,309,994.18
  6. Step 6: Final answer
    x = 1,006,300.08

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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.