Home / 879,240.67-1,316,794.24-428,549.16

Finding the Fourth Proportional to 879,240.67, 1,316,794.24 and 428,549.16

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Solution

The fourth proportional to 879,240.67, 1,316,794.24 and 428,549.16 is: 641,816.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,240.67 : 1,316,794.24 = 428,549.16 : x
  2. Step 2: Convert to fraction form
    879,240.67/1,316,794.24 = 428,549.16/x
  3. Step 3: Cross multiply
    879,240.67x = 1,316,794.24 × 428,549.16
  4. Step 4: Simplify right side
    879,240.67x = 564,311,065,444.84
  5. Step 5: Solve for x
    x = 564,311,065,444.84/879,240.67
  6. Step 6: Final answer
    x = 641,816.38

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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.