Home / 1,510,407.11-2,084,420.90-831,406.79

Finding the Fourth Proportional to 1,510,407.11, 2,084,420.90 and 831,406.79

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Solution

The fourth proportional to 1,510,407.11, 2,084,420.90 and 831,406.79 is: 1,147,373.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,407.11 : 2,084,420.90 = 831,406.79 : x
  2. Step 2: Convert to fraction form
    1,510,407.11/2,084,420.90 = 831,406.79/x
  3. Step 3: Cross multiply
    1,510,407.11x = 2,084,420.90 × 831,406.79
  4. Step 4: Simplify right side
    1,510,407.11x = 1,733,001,681,134.32
  5. Step 5: Solve for x
    x = 1,733,001,681,134.32/1,510,407.11
  6. Step 6: Final answer
    x = 1,147,373.89

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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.