Home / 769,019.76-1,061,118.36-429,489.36

Finding the Fourth Proportional to 769,019.76, 1,061,118.36 and 429,489.36

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Solution

The fourth proportional to 769,019.76, 1,061,118.36 and 429,489.36 is: 592,623.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,019.76 : 1,061,118.36 = 429,489.36 : x
  2. Step 2: Convert to fraction form
    769,019.76/1,061,118.36 = 429,489.36/x
  3. Step 3: Cross multiply
    769,019.76x = 1,061,118.36 × 429,489.36
  4. Step 4: Simplify right side
    769,019.76x = 455,739,045,320.65
  5. Step 5: Solve for x
    x = 455,739,045,320.65/769,019.76
  6. Step 6: Final answer
    x = 592,623.32

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Double scale
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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.