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Finding the Fourth Proportional to 885,773.60, 1,328,271.60 and 353,117.60

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Solution

The fourth proportional to 885,773.60, 1,328,271.60 and 353,117.60 is: 529,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,773.60 : 1,328,271.60 = 353,117.60 : x
  2. Step 2: Convert to fraction form
    885,773.60/1,328,271.60 = 353,117.60/x
  3. Step 3: Cross multiply
    885,773.60x = 1,328,271.60 × 353,117.60
  4. Step 4: Simplify right side
    885,773.60x = 469,036,079,540.16
  5. Step 5: Solve for x
    x = 469,036,079,540.16/885,773.60
  6. Step 6: Final answer
    x = 529,521.40

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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.