Home / 2,872,314.72-4,308,459.12-742,217.76

Finding the Fourth Proportional to 2,872,314.72, 4,308,459.12 and 742,217.76

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Solution

The fourth proportional to 2,872,314.72, 4,308,459.12 and 742,217.76 is: 1,113,323.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,314.72 : 4,308,459.12 = 742,217.76 : x
  2. Step 2: Convert to fraction form
    2,872,314.72/4,308,459.12 = 742,217.76/x
  3. Step 3: Cross multiply
    2,872,314.72x = 4,308,459.12 × 742,217.76
  4. Step 4: Simplify right side
    2,872,314.72x = 3,197,814,877,097.97
  5. Step 5: Solve for x
    x = 3,197,814,877,097.97/2,872,314.72
  6. Step 6: Final answer
    x = 1,113,323.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.