Home / 781,086.05-1,077,464.66-454,362.30

Finding the Fourth Proportional to 781,086.05, 1,077,464.66 and 454,362.30

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Solution

The fourth proportional to 781,086.05, 1,077,464.66 and 454,362.30 is: 626,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,086.05 : 1,077,464.66 = 454,362.30 : x
  2. Step 2: Convert to fraction form
    781,086.05/1,077,464.66 = 454,362.30/x
  3. Step 3: Cross multiply
    781,086.05x = 1,077,464.66 × 454,362.30
  4. Step 4: Simplify right side
    781,086.05x = 489,559,318,814.51
  5. Step 5: Solve for x
    x = 489,559,318,814.51/781,086.05
  6. Step 6: Final answer
    x = 626,767.46

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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.