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Finding the Fourth Proportional to 507,836.79, 761,881.14 and 358,369.11

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Solution

The fourth proportional to 507,836.79, 761,881.14 and 358,369.11 is: 537,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,836.79 : 761,881.14 = 358,369.11 : x
  2. Step 2: Convert to fraction form
    507,836.79/761,881.14 = 358,369.11/x
  3. Step 3: Cross multiply
    507,836.79x = 761,881.14 × 358,369.11
  4. Step 4: Simplify right side
    507,836.79x = 273,034,666,067.59
  5. Step 5: Solve for x
    x = 273,034,666,067.59/507,836.79
  6. Step 6: Final answer
    x = 537,642.55

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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.