Home / 1,390,372.55-2,086,347.76-750,667.76

Finding the Fourth Proportional to 1,390,372.55, 2,086,347.76 and 750,667.76

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Solution

The fourth proportional to 1,390,372.55, 2,086,347.76 and 750,667.76 is: 1,126,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,372.55 : 2,086,347.76 = 750,667.76 : x
  2. Step 2: Convert to fraction form
    1,390,372.55/2,086,347.76 = 750,667.76/x
  3. Step 3: Cross multiply
    1,390,372.55x = 2,086,347.76 × 750,667.76
  4. Step 4: Simplify right side
    1,390,372.55x = 1,566,153,987,271.81
  5. Step 5: Solve for x
    x = 1,566,153,987,271.81/1,390,372.55
  6. Step 6: Final answer
    x = 1,126,427.58

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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.