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Finding the Fourth Proportional to 651,873.40, 977,226.90 and 252,381.40

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Solution

The fourth proportional to 651,873.40, 977,226.90 and 252,381.40 is: 378,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,873.40 : 977,226.90 = 252,381.40 : x
  2. Step 2: Convert to fraction form
    651,873.40/977,226.90 = 252,381.40/x
  3. Step 3: Cross multiply
    651,873.40x = 977,226.90 × 252,381.40
  4. Step 4: Simplify right side
    651,873.40x = 246,633,893,139.66
  5. Step 5: Solve for x
    x = 246,633,893,139.66/651,873.40
  6. Step 6: Final answer
    x = 378,346.31

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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.