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Finding the Fourth Proportional to 895,406.40, 1,343,109.60 and 805,204.80

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Solution

The fourth proportional to 895,406.40, 1,343,109.60 and 805,204.80 is: 1,207,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,406.40 : 1,343,109.60 = 805,204.80 : x
  2. Step 2: Convert to fraction form
    895,406.40/1,343,109.60 = 805,204.80/x
  3. Step 3: Cross multiply
    895,406.40x = 1,343,109.60 × 805,204.80
  4. Step 4: Simplify right side
    895,406.40x = 1,081,478,296,846.08
  5. Step 5: Solve for x
    x = 1,081,478,296,846.08/895,406.40
  6. Step 6: Final answer
    x = 1,207,807.20

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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.