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Finding the Fourth Proportional to 672,705.50, 928,340.82 and 366,779.42

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Solution

The fourth proportional to 672,705.50, 928,340.82 and 366,779.42 is: 506,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,705.50 : 928,340.82 = 366,779.42 : x
  2. Step 2: Convert to fraction form
    672,705.50/928,340.82 = 366,779.42/x
  3. Step 3: Cross multiply
    672,705.50x = 928,340.82 × 366,779.42
  4. Step 4: Simplify right side
    672,705.50x = 340,496,307,521.92
  5. Step 5: Solve for x
    x = 340,496,307,521.92/672,705.50
  6. Step 6: Final answer
    x = 506,159.54

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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.