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Finding the Fourth Proportional to 972,392.76, 1,341,866.79 and 536,800.77

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Solution

The fourth proportional to 972,392.76, 1,341,866.79 and 536,800.77 is: 740,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,392.76 : 1,341,866.79 = 536,800.77 : x
  2. Step 2: Convert to fraction form
    972,392.76/1,341,866.79 = 536,800.77/x
  3. Step 3: Cross multiply
    972,392.76x = 1,341,866.79 × 536,800.77
  4. Step 4: Simplify right side
    972,392.76x = 720,315,126,109.43
  5. Step 5: Solve for x
    x = 720,315,126,109.43/972,392.76
  6. Step 6: Final answer
    x = 740,765.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.