Home / 1,227,277.96-1,692,194.40-840,281.04

Finding the Fourth Proportional to 1,227,277.96, 1,692,194.40 and 840,281.04

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Solution

The fourth proportional to 1,227,277.96, 1,692,194.40 and 840,281.04 is: 1,158,595.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,277.96 : 1,692,194.40 = 840,281.04 : x
  2. Step 2: Convert to fraction form
    1,227,277.96/1,692,194.40 = 840,281.04/x
  3. Step 3: Cross multiply
    1,227,277.96x = 1,692,194.40 × 840,281.04
  4. Step 4: Simplify right side
    1,227,277.96x = 1,421,918,870,314.18
  5. Step 5: Solve for x
    x = 1,421,918,870,314.18/1,227,277.96
  6. Step 6: Final answer
    x = 1,158,595.62

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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.