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Finding the Fourth Proportional to 672,741.24, 928,371 and 366,820

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Solution

The fourth proportional to 672,741.24, 928,371 and 366,820 is: 506,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,741.24 : 928,371 = 366,820 : x
  2. Step 2: Convert to fraction form
    672,741.24/928,371 = 366,820/x
  3. Step 3: Cross multiply
    672,741.24x = 928,371 × 366,820
  4. Step 4: Simplify right side
    672,741.24x = 340,545,050,220
  5. Step 5: Solve for x
    x = 340,545,050,220/672,741.24
  6. Step 6: Final answer
    x = 506,205.11

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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.