Home / 1,121,035-1,547,061.12-611,770.20

Finding the Fourth Proportional to 1,121,035, 1,547,061.12 and 611,770.20

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Solution

The fourth proportional to 1,121,035, 1,547,061.12 and 611,770.20 is: 844,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,035 : 1,547,061.12 = 611,770.20 : x
  2. Step 2: Convert to fraction form
    1,121,035/1,547,061.12 = 611,770.20/x
  3. Step 3: Cross multiply
    1,121,035x = 1,547,061.12 × 611,770.20
  4. Step 4: Simplify right side
    1,121,035x = 946,445,890,794.62
  5. Step 5: Solve for x
    x = 946,445,890,794.62/1,121,035
  6. Step 6: Final answer
    x = 844,260.79

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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.