Home / 1,315,710.11-1,817,457.08-991,474.02

Finding the Fourth Proportional to 1,315,710.11, 1,817,457.08 and 991,474.02

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Solution

The fourth proportional to 1,315,710.11, 1,817,457.08 and 991,474.02 is: 1,369,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,710.11 : 1,817,457.08 = 991,474.02 : x
  2. Step 2: Convert to fraction form
    1,315,710.11/1,817,457.08 = 991,474.02/x
  3. Step 3: Cross multiply
    1,315,710.11x = 1,817,457.08 × 991,474.02
  4. Step 4: Simplify right side
    1,315,710.11x = 1,801,961,468,197.78
  5. Step 5: Solve for x
    x = 1,801,961,468,197.78/1,315,710.11
  6. Step 6: Final answer
    x = 1,369,573.32

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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.