Home / 898,423.20-1,239,770.88-490,443.84

Finding the Fourth Proportional to 898,423.20, 1,239,770.88 and 490,443.84

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Solution

The fourth proportional to 898,423.20, 1,239,770.88 and 490,443.84 is: 676,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,423.20 : 1,239,770.88 = 490,443.84 : x
  2. Step 2: Convert to fraction form
    898,423.20/1,239,770.88 = 490,443.84/x
  3. Step 3: Cross multiply
    898,423.20x = 1,239,770.88 × 490,443.84
  4. Step 4: Simplify right side
    898,423.20x = 608,037,991,107.38
  5. Step 5: Solve for x
    x = 608,037,991,107.38/898,423.20
  6. Step 6: Final answer
    x = 676,783.49

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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.