Home / 972,005.20-1,458,007.80-498,738.40

Finding the Fourth Proportional to 972,005.20, 1,458,007.80 and 498,738.40

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Solution

The fourth proportional to 972,005.20, 1,458,007.80 and 498,738.40 is: 748,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,005.20 : 1,458,007.80 = 498,738.40 : x
  2. Step 2: Convert to fraction form
    972,005.20/1,458,007.80 = 498,738.40/x
  3. Step 3: Cross multiply
    972,005.20x = 1,458,007.80 × 498,738.40
  4. Step 4: Simplify right side
    972,005.20x = 727,164,477,359.52
  5. Step 5: Solve for x
    x = 727,164,477,359.52/972,005.20
  6. Step 6: Final answer
    x = 748,107.60

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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.