Home / 1,123,511.10-1,685,266.65-413,392.20

Finding the Fourth Proportional to 1,123,511.10, 1,685,266.65 and 413,392.20

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Solution

The fourth proportional to 1,123,511.10, 1,685,266.65 and 413,392.20 is: 620,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,511.10 : 1,685,266.65 = 413,392.20 : x
  2. Step 2: Convert to fraction form
    1,123,511.10/1,685,266.65 = 413,392.20/x
  3. Step 3: Cross multiply
    1,123,511.10x = 1,685,266.65 × 413,392.20
  4. Step 4: Simplify right side
    1,123,511.10x = 696,676,088,030.13
  5. Step 5: Solve for x
    x = 696,676,088,030.13/1,123,511.10
  6. Step 6: Final answer
    x = 620,088.30

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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.