Home / 678,010.10-1,017,015.17-528,362.42

Finding the Fourth Proportional to 678,010.10, 1,017,015.17 and 528,362.42

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Solution

The fourth proportional to 678,010.10, 1,017,015.17 and 528,362.42 is: 792,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,010.10 : 1,017,015.17 = 528,362.42 : x
  2. Step 2: Convert to fraction form
    678,010.10/1,017,015.17 = 528,362.42/x
  3. Step 3: Cross multiply
    678,010.10x = 1,017,015.17 × 528,362.42
  4. Step 4: Simplify right side
    678,010.10x = 537,352,588,671.02
  5. Step 5: Solve for x
    x = 537,352,588,671.02/678,010.10
  6. Step 6: Final answer
    x = 792,543.64

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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.