Home / 1,286,374.66-1,774,962.21-742,311.91

Finding the Fourth Proportional to 1,286,374.66, 1,774,962.21 and 742,311.91

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Solution

The fourth proportional to 1,286,374.66, 1,774,962.21 and 742,311.91 is: 1,024,254.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,374.66 : 1,774,962.21 = 742,311.91 : x
  2. Step 2: Convert to fraction form
    1,286,374.66/1,774,962.21 = 742,311.91/x
  3. Step 3: Cross multiply
    1,286,374.66x = 1,774,962.21 × 742,311.91
  4. Step 4: Simplify right side
    1,286,374.66x = 1,317,575,588,282.92
  5. Step 5: Solve for x
    x = 1,317,575,588,282.92/1,286,374.66
  6. Step 6: Final answer
    x = 1,024,254.93

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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.