Home / 693,151.91-1,039,827.05-213,420.31

Finding the Fourth Proportional to 693,151.91, 1,039,827.05 and 213,420.31

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Solution

The fourth proportional to 693,151.91, 1,039,827.05 and 213,420.31 is: 320,161.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,151.91 : 1,039,827.05 = 213,420.31 : x
  2. Step 2: Convert to fraction form
    693,151.91/1,039,827.05 = 213,420.31/x
  3. Step 3: Cross multiply
    693,151.91x = 1,039,827.05 × 213,420.31
  4. Step 4: Simplify right side
    693,151.91x = 221,920,209,291.37
  5. Step 5: Solve for x
    x = 221,920,209,291.37/693,151.91
  6. Step 6: Final answer
    x = 320,161.00

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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.