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Finding the Fourth Proportional to 885,737.60, 1,328,800.80 and 286,596.80

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Solution

The fourth proportional to 885,737.60, 1,328,800.80 and 286,596.80 is: 429,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,737.60 : 1,328,800.80 = 286,596.80 : x
  2. Step 2: Convert to fraction form
    885,737.60/1,328,800.80 = 286,596.80/x
  3. Step 3: Cross multiply
    885,737.60x = 1,328,800.80 × 286,596.80
  4. Step 4: Simplify right side
    885,737.60x = 380,830,057,117.44
  5. Step 5: Solve for x
    x = 380,830,057,117.44/885,737.60
  6. Step 6: Final answer
    x = 429,958.10

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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.