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Finding the Fourth Proportional to 884,908.80, 1,328,054.40 and 411,652.80

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Solution

The fourth proportional to 884,908.80, 1,328,054.40 and 411,652.80 is: 617,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,908.80 : 1,328,054.40 = 411,652.80 : x
  2. Step 2: Convert to fraction form
    884,908.80/1,328,054.40 = 411,652.80/x
  3. Step 3: Cross multiply
    884,908.80x = 1,328,054.40 × 411,652.80
  4. Step 4: Simplify right side
    884,908.80x = 546,697,312,312.32
  5. Step 5: Solve for x
    x = 546,697,312,312.32/884,908.80
  6. Step 6: Final answer
    x = 617,800.74

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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.