Home / 877,568.24-1,316,838.09-428,292.83

Finding the Fourth Proportional to 877,568.24, 1,316,838.09 and 428,292.83

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Solution

The fourth proportional to 877,568.24, 1,316,838.09 and 428,292.83 is: 642,676.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,568.24 : 1,316,838.09 = 428,292.83 : x
  2. Step 2: Convert to fraction form
    877,568.24/1,316,838.09 = 428,292.83/x
  3. Step 3: Cross multiply
    877,568.24x = 1,316,838.09 × 428,292.83
  4. Step 4: Simplify right side
    877,568.24x = 563,992,303,492.24
  5. Step 5: Solve for x
    x = 563,992,303,492.24/877,568.24
  6. Step 6: Final answer
    x = 642,676.30

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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.