Home / 693,146.89-1,039,712.10-219,836.35

Finding the Fourth Proportional to 693,146.89, 1,039,712.10 and 219,836.35

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Solution

The fourth proportional to 693,146.89, 1,039,712.10 and 219,836.35 is: 329,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,146.89 : 1,039,712.10 = 219,836.35 : x
  2. Step 2: Convert to fraction form
    693,146.89/1,039,712.10 = 219,836.35/x
  3. Step 3: Cross multiply
    693,146.89x = 1,039,712.10 × 219,836.35
  4. Step 4: Simplify right side
    693,146.89x = 228,566,513,114.84
  5. Step 5: Solve for x
    x = 228,566,513,114.84/693,146.89
  6. Step 6: Final answer
    x = 329,751.91

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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.