Home / 1,555,528.50-2,146,630.55-840,136.50

Finding the Fourth Proportional to 1,555,528.50, 2,146,630.55 and 840,136.50

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Solution

The fourth proportional to 1,555,528.50, 2,146,630.55 and 840,136.50 is: 1,159,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,528.50 : 2,146,630.55 = 840,136.50 : x
  2. Step 2: Convert to fraction form
    1,555,528.50/2,146,630.55 = 840,136.50/x
  3. Step 3: Cross multiply
    1,555,528.50x = 2,146,630.55 × 840,136.50
  4. Step 4: Simplify right side
    1,555,528.50x = 1,803,462,672,869.39
  5. Step 5: Solve for x
    x = 1,803,462,672,869.39/1,555,528.50
  6. Step 6: Final answer
    x = 1,159,389.03

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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.