Home / 718,529.20-1,077,793.80-660,468.40

Finding the Fourth Proportional to 718,529.20, 1,077,793.80 and 660,468.40

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Solution

The fourth proportional to 718,529.20, 1,077,793.80 and 660,468.40 is: 990,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,529.20 : 1,077,793.80 = 660,468.40 : x
  2. Step 2: Convert to fraction form
    718,529.20/1,077,793.80 = 660,468.40/x
  3. Step 3: Cross multiply
    718,529.20x = 1,077,793.80 × 660,468.40
  4. Step 4: Simplify right side
    718,529.20x = 711,848,746,615.92
  5. Step 5: Solve for x
    x = 711,848,746,615.92/718,529.20
  6. Step 6: Final answer
    x = 990,702.60

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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.