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Finding the Fourth Proportional to 616,406.32, 850,657.56 and 348,134.32

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Solution

The fourth proportional to 616,406.32, 850,657.56 and 348,134.32 is: 480,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,406.32 : 850,657.56 = 348,134.32 : x
  2. Step 2: Convert to fraction form
    616,406.32/850,657.56 = 348,134.32/x
  3. Step 3: Cross multiply
    616,406.32x = 850,657.56 × 348,134.32
  4. Step 4: Simplify right side
    616,406.32x = 296,143,091,203.46
  5. Step 5: Solve for x
    x = 296,143,091,203.46/616,406.32
  6. Step 6: Final answer
    x = 480,434.87

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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.