Home / 459,933.20-634,706.76-258,729.20

Finding the Fourth Proportional to 459,933.20, 634,706.76 and 258,729.20

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Solution

The fourth proportional to 459,933.20, 634,706.76 and 258,729.20 is: 357,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,933.20 : 634,706.76 = 258,729.20 : x
  2. Step 2: Convert to fraction form
    459,933.20/634,706.76 = 258,729.20/x
  3. Step 3: Cross multiply
    459,933.20x = 634,706.76 × 258,729.20
  4. Step 4: Simplify right side
    459,933.20x = 164,217,172,249.39
  5. Step 5: Solve for x
    x = 164,217,172,249.39/459,933.20
  6. Step 6: Final answer
    x = 357,045.70

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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.