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Finding the Fourth Proportional to 804,992.70, 1,208,266.65 and 490,064.70

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Solution

The fourth proportional to 804,992.70, 1,208,266.65 and 490,064.70 is: 735,570.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,992.70 : 1,208,266.65 = 490,064.70 : x
  2. Step 2: Convert to fraction form
    804,992.70/1,208,266.65 = 490,064.70/x
  3. Step 3: Cross multiply
    804,992.70x = 1,208,266.65 × 490,064.70
  4. Step 4: Simplify right side
    804,992.70x = 592,128,833,352.26
  5. Step 5: Solve for x
    x = 592,128,833,352.26/804,992.70
  6. Step 6: Final answer
    x = 735,570.44

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1.5x scale

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.