Home / 778,889.80-1,167,459.90-329,534.20

Finding the Fourth Proportional to 778,889.80, 1,167,459.90 and 329,534.20

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Solution

The fourth proportional to 778,889.80, 1,167,459.90 and 329,534.20 is: 493,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,889.80 : 1,167,459.90 = 329,534.20 : x
  2. Step 2: Convert to fraction form
    778,889.80/1,167,459.90 = 329,534.20/x
  3. Step 3: Cross multiply
    778,889.80x = 1,167,459.90 × 329,534.20
  4. Step 4: Simplify right side
    778,889.80x = 384,717,964,178.58
  5. Step 5: Solve for x
    x = 384,717,964,178.58/778,889.80
  6. Step 6: Final answer
    x = 493,931.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.