Home / 649,747.65-896,291.78-377,785.50

Finding the Fourth Proportional to 649,747.65, 896,291.78 and 377,785.50

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Solution

The fourth proportional to 649,747.65, 896,291.78 and 377,785.50 is: 521,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,747.65 : 896,291.78 = 377,785.50 : x
  2. Step 2: Convert to fraction form
    649,747.65/896,291.78 = 377,785.50/x
  3. Step 3: Cross multiply
    649,747.65x = 896,291.78 × 377,785.50
  4. Step 4: Simplify right side
    649,747.65x = 338,606,038,253.19
  5. Step 5: Solve for x
    x = 338,606,038,253.19/649,747.65
  6. Step 6: Final answer
    x = 521,134.69

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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.