Home / 1,318,261.12-1,817,890.40-992,354.40

Finding the Fourth Proportional to 1,318,261.12, 1,817,890.40 and 992,354.40

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Solution

The fourth proportional to 1,318,261.12, 1,817,890.40 and 992,354.40 is: 1,368,462.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,261.12 : 1,817,890.40 = 992,354.40 : x
  2. Step 2: Convert to fraction form
    1,318,261.12/1,817,890.40 = 992,354.40/x
  3. Step 3: Cross multiply
    1,318,261.12x = 1,817,890.40 × 992,354.40
  4. Step 4: Simplify right side
    1,318,261.12x = 1,803,991,537,157.76
  5. Step 5: Solve for x
    x = 1,803,991,537,157.76/1,318,261.12
  6. Step 6: Final answer
    x = 1,368,462.98

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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.