Home / 1,021,005.20-1,531,507.80-972,016.40

Finding the Fourth Proportional to 1,021,005.20, 1,531,507.80 and 972,016.40

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Solution

The fourth proportional to 1,021,005.20, 1,531,507.80 and 972,016.40 is: 1,458,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,005.20 : 1,531,507.80 = 972,016.40 : x
  2. Step 2: Convert to fraction form
    1,021,005.20/1,531,507.80 = 972,016.40/x
  3. Step 3: Cross multiply
    1,021,005.20x = 1,531,507.80 × 972,016.40
  4. Step 4: Simplify right side
    1,021,005.20x = 1,488,650,698,327.92
  5. Step 5: Solve for x
    x = 1,488,650,698,327.92/1,021,005.20
  6. Step 6: Final answer
    x = 1,458,024.60

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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.