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Finding the Fourth Proportional to 608,330.80, 839,465.40 and 340,058.80

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Solution

The fourth proportional to 608,330.80, 839,465.40 and 340,058.80 is: 469,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,330.80 : 839,465.40 = 340,058.80 : x
  2. Step 2: Convert to fraction form
    608,330.80/839,465.40 = 340,058.80/x
  3. Step 3: Cross multiply
    608,330.80x = 839,465.40 × 340,058.80
  4. Step 4: Simplify right side
    608,330.80x = 285,467,596,565.52
  5. Step 5: Solve for x
    x = 285,467,596,565.52/608,330.80
  6. Step 6: Final answer
    x = 469,263.76

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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.