Home / 1,021,637.70-1,532,456.55-862,205.40

Finding the Fourth Proportional to 1,021,637.70, 1,532,456.55 and 862,205.40

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Solution

The fourth proportional to 1,021,637.70, 1,532,456.55 and 862,205.40 is: 1,293,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,637.70 : 1,532,456.55 = 862,205.40 : x
  2. Step 2: Convert to fraction form
    1,021,637.70/1,532,456.55 = 862,205.40/x
  3. Step 3: Cross multiply
    1,021,637.70x = 1,532,456.55 × 862,205.40
  4. Step 4: Simplify right side
    1,021,637.70x = 1,321,292,312,675.37
  5. Step 5: Solve for x
    x = 1,321,292,312,675.37/1,021,637.70
  6. Step 6: Final answer
    x = 1,293,308.10

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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.