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Finding the Fourth Proportional to 507,488.82, 700,357.35 and 281,119.74

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Solution

The fourth proportional to 507,488.82, 700,357.35 and 281,119.74 is: 387,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,488.82 : 700,357.35 = 281,119.74 : x
  2. Step 2: Convert to fraction form
    507,488.82/700,357.35 = 281,119.74/x
  3. Step 3: Cross multiply
    507,488.82x = 700,357.35 × 281,119.74
  4. Step 4: Simplify right side
    507,488.82x = 196,884,276,139.09
  5. Step 5: Solve for x
    x = 196,884,276,139.09/507,488.82
  6. Step 6: Final answer
    x = 387,957.86

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1.5x scale

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.