Home / 630,986.56-870,776.38-344,508.69

Finding the Fourth Proportional to 630,986.56, 870,776.38 and 344,508.69

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Solution

The fourth proportional to 630,986.56, 870,776.38 and 344,508.69 is: 475,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,986.56 : 870,776.38 = 344,508.69 : x
  2. Step 2: Convert to fraction form
    630,986.56/870,776.38 = 344,508.69/x
  3. Step 3: Cross multiply
    630,986.56x = 870,776.38 × 344,508.69
  4. Step 4: Simplify right side
    630,986.56x = 299,990,031,714.93
  5. Step 5: Solve for x
    x = 299,990,031,714.93/630,986.56
  6. Step 6: Final answer
    x = 475,430.15

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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.