Home / 938,439.84-1,407,856.62-406,036.56

Finding the Fourth Proportional to 938,439.84, 1,407,856.62 and 406,036.56

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Solution

The fourth proportional to 938,439.84, 1,407,856.62 and 406,036.56 is: 609,140.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,439.84 : 1,407,856.62 = 406,036.56 : x
  2. Step 2: Convert to fraction form
    938,439.84/1,407,856.62 = 406,036.56/x
  3. Step 3: Cross multiply
    938,439.84x = 1,407,856.62 × 406,036.56
  4. Step 4: Simplify right side
    938,439.84x = 571,641,258,958.03
  5. Step 5: Solve for x
    x = 571,641,258,958.03/938,439.84
  6. Step 6: Final answer
    x = 609,140.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.