Home / 900,727.65-1,242,992.91-513,530.76

Finding the Fourth Proportional to 900,727.65, 1,242,992.91 and 513,530.76

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Solution

The fourth proportional to 900,727.65, 1,242,992.91 and 513,530.76 is: 708,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,727.65 : 1,242,992.91 = 513,530.76 : x
  2. Step 2: Convert to fraction form
    900,727.65/1,242,992.91 = 513,530.76/x
  3. Step 3: Cross multiply
    900,727.65x = 1,242,992.91 × 513,530.76
  4. Step 4: Simplify right side
    900,727.65x = 638,315,093,746.91
  5. Step 5: Solve for x
    x = 638,315,093,746.91/900,727.65
  6. Step 6: Final answer
    x = 708,666.04

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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.