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Finding the Fourth Proportional to 340,447.48, 469,578.54 and 295,045.72

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Solution

The fourth proportional to 340,447.48, 469,578.54 and 295,045.72 is: 406,955.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,447.48 : 469,578.54 = 295,045.72 : x
  2. Step 2: Convert to fraction form
    340,447.48/469,578.54 = 295,045.72/x
  3. Step 3: Cross multiply
    340,447.48x = 469,578.54 × 295,045.72
  4. Step 4: Simplify right side
    340,447.48x = 138,547,138,430.85
  5. Step 5: Solve for x
    x = 138,547,138,430.85/340,447.48
  6. Step 6: Final answer
    x = 406,955.98

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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.