Home / 1,048,561.60-1,570,509.60-861,937.60

Finding the Fourth Proportional to 1,048,561.60, 1,570,509.60 and 861,937.60

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Solution

The fourth proportional to 1,048,561.60, 1,570,509.60 and 861,937.60 is: 1,290,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,561.60 : 1,570,509.60 = 861,937.60 : x
  2. Step 2: Convert to fraction form
    1,048,561.60/1,570,509.60 = 861,937.60/x
  3. Step 3: Cross multiply
    1,048,561.60x = 1,570,509.60 × 861,937.60
  4. Step 4: Simplify right side
    1,048,561.60x = 1,353,681,275,400.96
  5. Step 5: Solve for x
    x = 1,353,681,275,400.96/1,048,561.60
  6. Step 6: Final answer
    x = 1,290,988.79

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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.