Home / 918,597.74-1,267,692.39-505,113.12

Finding the Fourth Proportional to 918,597.74, 1,267,692.39 and 505,113.12

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Solution

The fourth proportional to 918,597.74, 1,267,692.39 and 505,113.12 is: 697,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,597.74 : 1,267,692.39 = 505,113.12 : x
  2. Step 2: Convert to fraction form
    918,597.74/1,267,692.39 = 505,113.12/x
  3. Step 3: Cross multiply
    918,597.74x = 1,267,692.39 × 505,113.12
  4. Step 4: Simplify right side
    918,597.74x = 640,328,058,313.16
  5. Step 5: Solve for x
    x = 640,328,058,313.16/918,597.74
  6. Step 6: Final answer
    x = 697,071.24

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Double scale
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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.