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Finding the Fourth Proportional to 616,403.32, 850,653.42 and 348,131.32

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Solution

The fourth proportional to 616,403.32, 850,653.42 and 348,131.32 is: 480,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,403.32 : 850,653.42 = 348,131.32 : x
  2. Step 2: Convert to fraction form
    616,403.32/850,653.42 = 348,131.32/x
  3. Step 3: Cross multiply
    616,403.32x = 850,653.42 × 348,131.32
  4. Step 4: Simplify right side
    616,403.32x = 296,139,097,967.11
  5. Step 5: Solve for x
    x = 296,139,097,967.11/616,403.32
  6. Step 6: Final answer
    x = 480,430.73

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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.