Home / 970,621.20-1,455,413.40-409,021.20

Finding the Fourth Proportional to 970,621.20, 1,455,413.40 and 409,021.20

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Solution

The fourth proportional to 970,621.20, 1,455,413.40 and 409,021.20 is: 613,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,621.20 : 1,455,413.40 = 409,021.20 : x
  2. Step 2: Convert to fraction form
    970,621.20/1,455,413.40 = 409,021.20/x
  3. Step 3: Cross multiply
    970,621.20x = 1,455,413.40 × 409,021.20
  4. Step 4: Simplify right side
    970,621.20x = 595,294,935,364.08
  5. Step 5: Solve for x
    x = 595,294,935,364.08/970,621.20
  6. Step 6: Final answer
    x = 613,313.35

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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.