Home / 918,330-1,267,294.08-510,469.77

Finding the Fourth Proportional to 918,330, 1,267,294.08 and 510,469.77

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Solution

The fourth proportional to 918,330, 1,267,294.08 and 510,469.77 is: 704,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,330 : 1,267,294.08 = 510,469.77 : x
  2. Step 2: Convert to fraction form
    918,330/1,267,294.08 = 510,469.77/x
  3. Step 3: Cross multiply
    918,330x = 1,267,294.08 × 510,469.77
  4. Step 4: Simplify right side
    918,330x = 646,915,317,539.96
  5. Step 5: Solve for x
    x = 646,915,317,539.96/918,330
  6. Step 6: Final answer
    x = 704,447.55

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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.