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Finding the Fourth Proportional to 1,812,984.90, 2,721,572.55 and 973,176.90

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Solution

The fourth proportional to 1,812,984.90, 2,721,572.55 and 973,176.90 is: 1,460,890.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,984.90 : 2,721,572.55 = 973,176.90 : x
  2. Step 2: Convert to fraction form
    1,812,984.90/2,721,572.55 = 973,176.90/x
  3. Step 3: Cross multiply
    1,812,984.90x = 2,721,572.55 × 973,176.90
  4. Step 4: Simplify right side
    1,812,984.90x = 2,648,571,537,334.09
  5. Step 5: Solve for x
    x = 2,648,571,537,334.09/1,812,984.90
  6. Step 6: Final answer
    x = 1,460,890.01

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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.