Home / 786,298.46-1,177,718.88-649,815.72

Finding the Fourth Proportional to 786,298.46, 1,177,718.88 and 649,815.72

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Solution

The fourth proportional to 786,298.46, 1,177,718.88 and 649,815.72 is: 973,294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,298.46 : 1,177,718.88 = 649,815.72 : x
  2. Step 2: Convert to fraction form
    786,298.46/1,177,718.88 = 649,815.72/x
  3. Step 3: Cross multiply
    786,298.46x = 1,177,718.88 × 649,815.72
  4. Step 4: Simplify right side
    786,298.46x = 765,300,241,964.79
  5. Step 5: Solve for x
    x = 765,300,241,964.79/786,298.46
  6. Step 6: Final answer
    x = 973,294.85

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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.