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Finding the Fourth Proportional to 851,953.60, 1,280,554.80 and 804,714.40

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Solution

The fourth proportional to 851,953.60, 1,280,554.80 and 804,714.40 is: 1,209,550.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,953.60 : 1,280,554.80 = 804,714.40 : x
  2. Step 2: Convert to fraction form
    851,953.60/1,280,554.80 = 804,714.40/x
  3. Step 3: Cross multiply
    851,953.60x = 1,280,554.80 × 804,714.40
  4. Step 4: Simplify right side
    851,953.60x = 1,030,480,887,549.12
  5. Step 5: Solve for x
    x = 1,030,480,887,549.12/851,953.60
  6. Step 6: Final answer
    x = 1,209,550.48

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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.