Home / 874,999.40-1,312,499.10-476,868.20

Finding the Fourth Proportional to 874,999.40, 1,312,499.10 and 476,868.20

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Solution

The fourth proportional to 874,999.40, 1,312,499.10 and 476,868.20 is: 715,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,999.40 : 1,312,499.10 = 476,868.20 : x
  2. Step 2: Convert to fraction form
    874,999.40/1,312,499.10 = 476,868.20/x
  3. Step 3: Cross multiply
    874,999.40x = 1,312,499.10 × 476,868.20
  4. Step 4: Simplify right side
    874,999.40x = 625,889,083,318.62
  5. Step 5: Solve for x
    x = 625,889,083,318.62/874,999.40
  6. Step 6: Final answer
    x = 715,302.30

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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.