Home / 2,872,289.72-4,308,421.62-742,192.76

Finding the Fourth Proportional to 2,872,289.72, 4,308,421.62 and 742,192.76

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Solution

The fourth proportional to 2,872,289.72, 4,308,421.62 and 742,192.76 is: 1,113,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,289.72 : 4,308,421.62 = 742,192.76 : x
  2. Step 2: Convert to fraction form
    2,872,289.72/4,308,421.62 = 742,192.76/x
  3. Step 3: Cross multiply
    2,872,289.72x = 4,308,421.62 × 742,192.76
  4. Step 4: Simplify right side
    2,872,289.72x = 3,197,679,333,391.47
  5. Step 5: Solve for x
    x = 3,197,679,333,391.47/2,872,289.72
  6. Step 6: Final answer
    x = 1,113,285.79

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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.