Home / 1,291,957.76-1,936,633.93-812,528.18

Finding the Fourth Proportional to 1,291,957.76, 1,936,633.93 and 812,528.18

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Solution

The fourth proportional to 1,291,957.76, 1,936,633.93 and 812,528.18 is: 1,217,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,957.76 : 1,936,633.93 = 812,528.18 : x
  2. Step 2: Convert to fraction form
    1,291,957.76/1,936,633.93 = 812,528.18/x
  3. Step 3: Cross multiply
    1,291,957.76x = 1,936,633.93 × 812,528.18
  4. Step 4: Simplify right side
    1,291,957.76x = 1,573,569,638,017.03
  5. Step 5: Solve for x
    x = 1,573,569,638,017.03/1,291,957.76
  6. Step 6: Final answer
    x = 1,217,972.97

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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.