Home / 890,279.20-1,335,418.80-535,110.40

Finding the Fourth Proportional to 890,279.20, 1,335,418.80 and 535,110.40

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Solution

The fourth proportional to 890,279.20, 1,335,418.80 and 535,110.40 is: 802,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,279.20 : 1,335,418.80 = 535,110.40 : x
  2. Step 2: Convert to fraction form
    890,279.20/1,335,418.80 = 535,110.40/x
  3. Step 3: Cross multiply
    890,279.20x = 1,335,418.80 × 535,110.40
  4. Step 4: Simplify right side
    890,279.20x = 714,596,488,235.52
  5. Step 5: Solve for x
    x = 714,596,488,235.52/890,279.20
  6. Step 6: Final answer
    x = 802,665.60

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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.