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Finding the Fourth Proportional to 578,376.66, 866,055.96 and 465,439.98

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Solution

The fourth proportional to 578,376.66, 866,055.96 and 465,439.98 is: 696,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,376.66 : 866,055.96 = 465,439.98 : x
  2. Step 2: Convert to fraction form
    578,376.66/866,055.96 = 465,439.98/x
  3. Step 3: Cross multiply
    578,376.66x = 866,055.96 × 465,439.98
  4. Step 4: Simplify right side
    578,376.66x = 403,097,068,701.28
  5. Step 5: Solve for x
    x = 403,097,068,701.28/578,376.66
  6. Step 6: Final answer
    x = 696,945.60

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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.