Home / 630,910.71-870,632.19-344,433.15

Finding the Fourth Proportional to 630,910.71, 870,632.19 and 344,433.15

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Solution

The fourth proportional to 630,910.71, 870,632.19 and 344,433.15 is: 475,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,910.71 : 870,632.19 = 344,433.15 : x
  2. Step 2: Convert to fraction form
    630,910.71/870,632.19 = 344,433.15/x
  3. Step 3: Cross multiply
    630,910.71x = 870,632.19 × 344,433.15
  4. Step 4: Simplify right side
    630,910.71x = 299,874,587,693.10
  5. Step 5: Solve for x
    x = 299,874,587,693.10/630,910.71
  6. Step 6: Final answer
    x = 475,304.32

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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.