Home / 1,121,514.12-1,547,665.38-612,225

Finding the Fourth Proportional to 1,121,514.12, 1,547,665.38 and 612,225

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Solution

The fourth proportional to 1,121,514.12, 1,547,665.38 and 612,225 is: 844,857.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,514.12 : 1,547,665.38 = 612,225 : x
  2. Step 2: Convert to fraction form
    1,121,514.12/1,547,665.38 = 612,225/x
  3. Step 3: Cross multiply
    1,121,514.12x = 1,547,665.38 × 612,225
  4. Step 4: Simplify right side
    1,121,514.12x = 947,519,437,270.50
  5. Step 5: Solve for x
    x = 947,519,437,270.50/1,121,514.12
  6. Step 6: Final answer
    x = 844,857.34

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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.