Home / 1,038,991.60-1,558,487.40-972,069.40

Finding the Fourth Proportional to 1,038,991.60, 1,558,487.40 and 972,069.40

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Solution

The fourth proportional to 1,038,991.60, 1,558,487.40 and 972,069.40 is: 1,458,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,991.60 : 1,558,487.40 = 972,069.40 : x
  2. Step 2: Convert to fraction form
    1,038,991.60/1,558,487.40 = 972,069.40/x
  3. Step 3: Cross multiply
    1,038,991.60x = 1,558,487.40 × 972,069.40
  4. Step 4: Simplify right side
    1,038,991.60x = 1,514,957,911,825.56
  5. Step 5: Solve for x
    x = 1,514,957,911,825.56/1,038,991.60
  6. Step 6: Final answer
    x = 1,458,104.10

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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.