Home / 459,948.78-634,650.35-422,743.23

Finding the Fourth Proportional to 459,948.78, 634,650.35 and 422,743.23

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Solution

The fourth proportional to 459,948.78, 634,650.35 and 422,743.23 is: 583,313.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,948.78 : 634,650.35 = 422,743.23 : x
  2. Step 2: Convert to fraction form
    459,948.78/634,650.35 = 422,743.23/x
  3. Step 3: Cross multiply
    459,948.78x = 634,650.35 × 422,743.23
  4. Step 4: Simplify right side
    459,948.78x = 268,294,136,765.91
  5. Step 5: Solve for x
    x = 268,294,136,765.91/459,948.78
  6. Step 6: Final answer
    x = 583,313.07

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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.