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Finding the Fourth Proportional to 673,830.69, 929,888.28 and 367,909.71

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Solution

The fourth proportional to 673,830.69, 929,888.28 and 367,909.71 is: 507,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,830.69 : 929,888.28 = 367,909.71 : x
  2. Step 2: Convert to fraction form
    673,830.69/929,888.28 = 367,909.71/x
  3. Step 3: Cross multiply
    673,830.69x = 929,888.28 × 367,909.71
  4. Step 4: Simplify right side
    673,830.69x = 342,114,927,427.20
  5. Step 5: Solve for x
    x = 342,114,927,427.20/673,830.69
  6. Step 6: Final answer
    x = 507,716.45

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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.