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Finding the Fourth Proportional to 632,920.64, 873,429.84 and 346,438.16

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Solution

The fourth proportional to 632,920.64, 873,429.84 and 346,438.16 is: 478,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,920.64 : 873,429.84 = 346,438.16 : x
  2. Step 2: Convert to fraction form
    632,920.64/873,429.84 = 346,438.16/x
  3. Step 3: Cross multiply
    632,920.64x = 873,429.84 × 346,438.16
  4. Step 4: Simplify right side
    632,920.64x = 302,589,426,658.69
  5. Step 5: Solve for x
    x = 302,589,426,658.69/632,920.64
  6. Step 6: Final answer
    x = 478,084.31

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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.