Home / 766,318.32-1,057,343.22-439,480.08

Finding the Fourth Proportional to 766,318.32, 1,057,343.22 and 439,480.08

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Solution

The fourth proportional to 766,318.32, 1,057,343.22 and 439,480.08 is: 606,381.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,318.32 : 1,057,343.22 = 439,480.08 : x
  2. Step 2: Convert to fraction form
    766,318.32/1,057,343.22 = 439,480.08/x
  3. Step 3: Cross multiply
    766,318.32x = 1,057,343.22 × 439,480.08
  4. Step 4: Simplify right side
    766,318.32x = 464,681,282,913.06
  5. Step 5: Solve for x
    x = 464,681,282,913.06/766,318.32
  6. Step 6: Final answer
    x = 606,381.54

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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.