Home / 693,166.40-1,039,848.80-213,434.80

Finding the Fourth Proportional to 693,166.40, 1,039,848.80 and 213,434.80

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Solution

The fourth proportional to 693,166.40, 1,039,848.80 and 213,434.80 is: 320,182.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,166.40 : 1,039,848.80 = 213,434.80 : x
  2. Step 2: Convert to fraction form
    693,166.40/1,039,848.80 = 213,434.80/x
  3. Step 3: Cross multiply
    693,166.40x = 1,039,848.80 × 213,434.80
  4. Step 4: Simplify right side
    693,166.40x = 221,939,920,658.24
  5. Step 5: Solve for x
    x = 221,939,920,658.24/693,166.40
  6. Step 6: Final answer
    x = 320,182.74

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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.