Home / 908,776.12-1,254,118.66-500,878.98

Finding the Fourth Proportional to 908,776.12, 1,254,118.66 and 500,878.98

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Solution

The fourth proportional to 908,776.12, 1,254,118.66 and 500,878.98 is: 691,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,776.12 : 1,254,118.66 = 500,878.98 : x
  2. Step 2: Convert to fraction form
    908,776.12/1,254,118.66 = 500,878.98/x
  3. Step 3: Cross multiply
    908,776.12x = 1,254,118.66 × 500,878.98
  4. Step 4: Simplify right side
    908,776.12x = 628,161,675,219.77
  5. Step 5: Solve for x
    x = 628,161,675,219.77/908,776.12
  6. Step 6: Final answer
    x = 691,217.19

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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.