Home / 889,427.80-1,334,141.70-534,842.20

Finding the Fourth Proportional to 889,427.80, 1,334,141.70 and 534,842.20

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Solution

The fourth proportional to 889,427.80, 1,334,141.70 and 534,842.20 is: 802,263.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,427.80 : 1,334,141.70 = 534,842.20 : x
  2. Step 2: Convert to fraction form
    889,427.80/1,334,141.70 = 534,842.20/x
  3. Step 3: Cross multiply
    889,427.80x = 1,334,141.70 × 534,842.20
  4. Step 4: Simplify right side
    889,427.80x = 713,555,281,939.74
  5. Step 5: Solve for x
    x = 713,555,281,939.74/889,427.80
  6. Step 6: Final answer
    x = 802,263.30

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Double scale
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Similar ratio
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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.