Home / 678,400.67-1,017,822.12-341,267.33

Finding the Fourth Proportional to 678,400.67, 1,017,822.12 and 341,267.33

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Solution

The fourth proportional to 678,400.67, 1,017,822.12 and 341,267.33 is: 512,012.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,400.67 : 1,017,822.12 = 341,267.33 : x
  2. Step 2: Convert to fraction form
    678,400.67/1,017,822.12 = 341,267.33/x
  3. Step 3: Cross multiply
    678,400.67x = 1,017,822.12 × 341,267.33
  4. Step 4: Simplify right side
    678,400.67x = 347,349,437,307.34
  5. Step 5: Solve for x
    x = 347,349,437,307.34/678,400.67
  6. Step 6: Final answer
    x = 512,012.23

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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.