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Finding the Fourth Proportional to 602,115.80, 830,931.20 and 330,167.48

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Solution

The fourth proportional to 602,115.80, 830,931.20 and 330,167.48 is: 455,637.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,115.80 : 830,931.20 = 330,167.48 : x
  2. Step 2: Convert to fraction form
    602,115.80/830,931.20 = 330,167.48/x
  3. Step 3: Cross multiply
    602,115.80x = 830,931.20 × 330,167.48
  4. Step 4: Simplify right side
    602,115.80x = 274,346,454,551.88
  5. Step 5: Solve for x
    x = 274,346,454,551.88/602,115.80
  6. Step 6: Final answer
    x = 455,637.36

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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.