Home / 864,176.40-1,296,264.60-545,311.80

Finding the Fourth Proportional to 864,176.40, 1,296,264.60 and 545,311.80

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Solution

The fourth proportional to 864,176.40, 1,296,264.60 and 545,311.80 is: 817,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,176.40 : 1,296,264.60 = 545,311.80 : x
  2. Step 2: Convert to fraction form
    864,176.40/1,296,264.60 = 545,311.80/x
  3. Step 3: Cross multiply
    864,176.40x = 1,296,264.60 × 545,311.80
  4. Step 4: Simplify right side
    864,176.40x = 706,868,382,302.28
  5. Step 5: Solve for x
    x = 706,868,382,302.28/864,176.40
  6. Step 6: Final answer
    x = 817,967.70

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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.