Home / 1,369,120.76-1,888,808.10-916,557.56

Finding the Fourth Proportional to 1,369,120.76, 1,888,808.10 and 916,557.56

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Solution

The fourth proportional to 1,369,120.76, 1,888,808.10 and 916,557.56 is: 1,264,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,120.76 : 1,888,808.10 = 916,557.56 : x
  2. Step 2: Convert to fraction form
    1,369,120.76/1,888,808.10 = 916,557.56/x
  3. Step 3: Cross multiply
    1,369,120.76x = 1,888,808.10 × 916,557.56
  4. Step 4: Simplify right side
    1,369,120.76x = 1,731,201,334,000.20
  5. Step 5: Solve for x
    x = 1,731,201,334,000.20/1,369,120.76
  6. Step 6: Final answer
    x = 1,264,462.12

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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.