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Finding the Fourth Proportional to 634,626.82, 875,807.76 and 348,155.34

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Solution

The fourth proportional to 634,626.82, 875,807.76 and 348,155.34 is: 480,466.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,626.82 : 875,807.76 = 348,155.34 : x
  2. Step 2: Convert to fraction form
    634,626.82/875,807.76 = 348,155.34/x
  3. Step 3: Cross multiply
    634,626.82x = 875,807.76 × 348,155.34
  4. Step 4: Simplify right side
    634,626.82x = 304,917,146,478.74
  5. Step 5: Solve for x
    x = 304,917,146,478.74/634,626.82
  6. Step 6: Final answer
    x = 480,466.84

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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.