Home / 1,971,420.66-2,720,558.61-1,066,000.50

Finding the Fourth Proportional to 1,971,420.66, 2,720,558.61 and 1,066,000.50

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Solution

The fourth proportional to 1,971,420.66, 2,720,558.61 and 1,066,000.50 is: 1,471,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,420.66 : 2,720,558.61 = 1,066,000.50 : x
  2. Step 2: Convert to fraction form
    1,971,420.66/2,720,558.61 = 1,066,000.50/x
  3. Step 3: Cross multiply
    1,971,420.66x = 2,720,558.61 × 1,066,000.50
  4. Step 4: Simplify right side
    1,971,420.66x = 2,900,116,838,539.31
  5. Step 5: Solve for x
    x = 2,900,116,838,539.31/1,971,420.66
  6. Step 6: Final answer
    x = 1,471,079.66

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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.