Home / 918,674.69-1,267,705.25-505,240.58

Finding the Fourth Proportional to 918,674.69, 1,267,705.25 and 505,240.58

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Solution

The fourth proportional to 918,674.69, 1,267,705.25 and 505,240.58 is: 697,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,674.69 : 1,267,705.25 = 505,240.58 : x
  2. Step 2: Convert to fraction form
    918,674.69/1,267,705.25 = 505,240.58/x
  3. Step 3: Cross multiply
    918,674.69x = 1,267,705.25 × 505,240.58
  4. Step 4: Simplify right side
    918,674.69x = 640,496,130,703.62
  5. Step 5: Solve for x
    x = 640,496,130,703.62/918,674.69
  6. Step 6: Final answer
    x = 697,195.80

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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.