Home / 486,977.29-672,216.23-435,899.90

Finding the Fourth Proportional to 486,977.29, 672,216.23 and 435,899.90

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Solution

The fourth proportional to 486,977.29, 672,216.23 and 435,899.90 is: 601,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,977.29 : 672,216.23 = 435,899.90 : x
  2. Step 2: Convert to fraction form
    486,977.29/672,216.23 = 435,899.90/x
  3. Step 3: Cross multiply
    486,977.29x = 672,216.23 × 435,899.90
  4. Step 4: Simplify right side
    486,977.29x = 293,018,990,205.67
  5. Step 5: Solve for x
    x = 293,018,990,205.67/486,977.29
  6. Step 6: Final answer
    x = 601,709.77

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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.