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Finding the Fourth Proportional to 708,256.12, 977,368.62 and 385,959.64

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Solution

The fourth proportional to 708,256.12, 977,368.62 and 385,959.64 is: 532,610.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,256.12 : 977,368.62 = 385,959.64 : x
  2. Step 2: Convert to fraction form
    708,256.12/977,368.62 = 385,959.64/x
  3. Step 3: Cross multiply
    708,256.12x = 977,368.62 × 385,959.64
  4. Step 4: Simplify right side
    708,256.12x = 377,224,840,722.50
  5. Step 5: Solve for x
    x = 377,224,840,722.50/708,256.12
  6. Step 6: Final answer
    x = 532,610.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.