Home / 678,011.10-1,017,016.67-528,363.42

Finding the Fourth Proportional to 678,011.10, 1,017,016.67 and 528,363.42

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Solution

The fourth proportional to 678,011.10, 1,017,016.67 and 528,363.42 is: 792,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,011.10 : 1,017,016.67 = 528,363.42 : x
  2. Step 2: Convert to fraction form
    678,011.10/1,017,016.67 = 528,363.42/x
  3. Step 3: Cross multiply
    678,011.10x = 1,017,016.67 × 528,363.42
  4. Step 4: Simplify right side
    678,011.10x = 537,354,405,958.21
  5. Step 5: Solve for x
    x = 537,354,405,958.21/678,011.10
  6. Step 6: Final answer
    x = 792,545.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.